--- product_id: 105389272 title: "Seachem Tidal Power Aquarium Filter - 35 Gallon Large Fish Tank Filter,black" brand: "seachem" price: "€ 94.29" currency: EUR in_stock: true reviews_count: 9 category: "Seachem" url: https://www.desertcart.hr/products/105389272-seachem-tidal-power-aquarium-filter-35-gallon-large-fish-tank store_origin: HR region: Croatia --- # Dual intake surface & underwater skimmer Maintenance alert for clogging 450 GPH max adjustable flow Seachem Tidal Power Aquarium Filter - 35 Gallon Large Fish Tank Filter,black **Brand:** seachem **Price:** € 94.29 **Availability:** ✅ In Stock ## Summary > 🌟 Elevate your aquarium game with the Seachem Tidal 35 — where smart filtration meets effortless style. ## Quick Answers - **What is this?** Seachem Tidal Power Aquarium Filter - 35 Gallon Large Fish Tank Filter,black by seachem - **How much does it cost?** € 94.29 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/105389272-seachem-tidal-power-aquarium-filter-35-gallon-large-fish-tank) ## Best For - seachem enthusiasts ## Why This Product - Trusted seachem brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Massive Media Capacity:** Customize your filtration with a large basket that fits your choice of media—bio, mechanical, or chemical. - • **Precision Flow Control:** Tailor water movement from a gentle 90 to a powerful 450 GPH for your fish’s perfect habitat. - • **Smart Maintenance Alert:** Stay ahead of clogging with a visible alert that signals when it’s time to clean, ensuring peak performance. - • **Dual Intake Surface Skimmer:** Eliminate surface oils and floating debris with innovative dual intake technology for crystal-clear water. - • **No-Primer, Self-Starting Pump:** Forget the hassle—this filter restarts instantly after power outages with a self-priming, push-style impeller. ## Overview The Seachem Tidal Power Aquarium Filter 35 is a high-performance, adjustable hang-on-back filter designed for tanks up to 35 gallons. Featuring a self-priming pump, dual intake system with surface skimmer, and a large customizable media basket, it delivers superior biological, mechanical, and chemical filtration. Its innovative maintenance alert system and quiet operation make it a top choice for millennial aquarium enthusiasts seeking reliable, low-fuss water care. ## Description Ventilation slots-- Ventilation slots in the lid of the filter and aeration grooves in the outflow ensure that water returned to the tank is fully oxygenated and maximize gas exchange during filtration. Bottom-to-top flow-- The pump pushes water up into the basket of the filter, entering through the bottom of the basket and being pushed out the top. A bottom-to-top flow ensures that water comes into contact will all filter media, and cannot go around or over filter media as with hang on back filters with a back-to-front flow. Maintenance alert-- Over time, filtration media can become clogged with detritus reducing or obstructing the flow of water through it. When this happens in Tidal™ filters, water is redirected around the filter and back into the aquarium through an outlet on the side. The redirected water pushes up the blue maintenance alert on the top of the filter, signaling that the filter needs to be cleaned. Surface skimmer-- The surface skimmer will capture the water from just below the surface, where excreted fish oils accumulate, as well as deeper in the tank removing floating debris. Flow regulation-- The flow on the pump is adjustable using the dial on the front. No filter cartridges-- The filter basket has a huge capacity to hold filtration media of your choice in the configuration of your choice. All Tidal™ Filters come with Seachem's Matrix™ bio-media to get you started. No mess maintenance-- The basket is fully removable and snaps into the lid of the filter for easy and drip-free transit to a sink or hose for cleaning. Self-priming pump-- Self-priming pump means there is no need to fill the filter basket with water, start a siphon, monitor the filter, or any of the other headaches of starting a new filter. Self-cleaning impeller-- The self-cleaning, corrosion-resistant impeller is suited for both saltwater and freshwater environments. This cuts down on maintenance and makes the filter suitable for a wide range of environments. Adjustable leveling device. A leveler on the base of the filter lets the filter adjust to a variety of aquarium styles. 3 year warranty-- All Tidal™ Filters are guaranteed against defects of materials and workmanship for a period of 3 years from the date of purchase and register your filter, except for the pump’s impeller. This can be extended to 5 years by registering your filter. The warranty covers the replacement of the defective parts. FOR HELP-- These parts have never worked together before, so noise from your filter is normal for up to a week after first use. If you have ANY concerns, please reach out to our product support specialist to confirm the noise or any troubleshooting you may need. Please reach out to Seachem Tech Support at 888.732.0003 or by email support@seachem.com Review: Great filter - These are hands down the best HOBs on the market. Large media area, self priming and QUIET. If you hear a raddle, fidfle with it. Lube the impeller and run pump (in water) w/o the filter.. it should be quiet. If its not, its the impeller, if it is, theres something in need of adjustment within the housing. Easy stuff. Dont worry, it feels scary tweeking them at first, but they're sturdy. Done right, this is a great system. Its reliable, and I can sleep with it running (and I'm picky as they come). I have 2 35's and a 55. They have a minor flaw with the intake if you have shrimp but course sponge or ACO has an answer. Over all, for the price, you can't beat it. Review: Perhaps best filter for a small fish tank - This could very well be the best HOB power filter for a small fish tank. By small, I mean tanks less than 30 gallon. The Tidal 35 has some standout features that make it an excellent choice for a small tank. It is capable of comprehensive filtration: biological, mechanical, and chemical. I say "perhaps" because I have not tried the newest Marineland Penguins. I owned an Emperor 400 many years ago and threw it away because it was a pain to prime the pump after a water change. I understand that issue has been resolved in the new products from Marineland. Anyway, back to the Seachem Tidal 35. This filter's most important feature is the internal (In the tank) motor. This filter will restart even if the media box is completely dry. It does not rely on siphon to work. It is a "push" system. The impeller is inside the fish tank, below the water level. The impeller pushes the water to the filter. This means it will restart reliably after a power failure. There is never any need to prime the filter. Priming means to add water to the filter box in order to start the siphon. The Seachem does not require manufactured filter media. Yes, you can roll your own. Your knowledge and choice of materials will determine the effectiveness of the filter. The size of the filter box will allow you to pack a lot of filtration material. More than enough for a 35 gallon tank. There are other very good power filters on the market. I also love the Fluval C series and the Aquaclears. The Fluval C series has the advantage of having the biological media above the water level. Thus, the Fluval C series has a small wet-dry area to grow beneficial microbes. Biological filtration is greatly improved when your media has exposure to the atmosphere. Bacteria thrives on oxygen. So this is where the Fluval C series and the Marineland filters have their advantage over the Seachem Tidal. However, most situations do not call for maximum biological filtration efficiency. Bacteria grow on every interior surface of your tank. Even submerged media will have more than enough capacity to provide biological filtration for the filter's rated gallons. This Seachem will easily handle the biological load for its rated capacity. This is a great product from Seachem. It is made for them by the Italian maker, Sicce. Yes, it is more expensive compared to its competitors. But the fact that you do not need to prime the filter is a big convenience factor. It also makes the filter more dependable. The surface skimmer will work great if you have carbon in the filter box. Otherwise, it will not be able to remove surface oils. You can reuse or repurpose the small zip bag that comes with the filter. I have freshwater clams in this fish tank. Therefore, I do not want to filter out the floating debris from the water column. Clams are filter feeders. This filter's main purpose is to provide biological filtration and water circulation. I removed the foam filter. I am only using the bag of Matrix biomedia. This allows small particles, such as phytoplankton, to pass through. At least most of them. I either reduce the water flow or turn off the filter when adding phytoplankton to the tank. I also have a Seachem Ammonia alert in this tank. Yes, adding liquid phytoplankton adds to the biological load of the tank. But the clams have to eat too. The Ammonia Alert will let me know if a spike should occur. This is a great filter. I can recommend it without any reservations. For bigger tanks, you might want to also check out the newest Marineland Emperor Pro 450. I have not owned the newly redesigned Emperor. It is only for big tanks. The Tidal 75 is probably its biggest competitor. ## Features - FLOW REGULATION: The fully adjustable flow regulation feature on the Tidal Power Filter adjusts performance to a specific aquarium volume, type, or provide an environment for fish that prefer more or less water movement or oxygenation. Adjust the dial from anywhere between 450 gallons per hour down to a gentle 90 gallons per hour. - SURFACE SKIMMER: The surface skimmer on the Tidal Power Filter will capture the water from just below the surface, where excreted fish oils accumulate, as well as deeper in the tank to remove floating debris. - ADJUSTABLE INTAKE FLOW: With Tidal’s dual intake, it pulls water in through the telescoping pipe below the surface and at the surface through the surface skimmer. Easily adjust how much flow comes from the underwater intake pipe versus the surface skimmer with the intake flow dial. - HEATER HOLDER: A heater can be attached to the side of the Tidal Power Filter with an optional heater clip, allowing for better dispersal of heated water throughout your tank or aquarium. - MAINTENANCE ALERT: When filtration media becomes clogged with detritus and affects the flow of water, the Tidal Power Filter redirects water around the filter and back into the aquarium through an outlet on the side. The redirected water then pushed up the blue maintenance alert on the top of the filter, signaling that the filter needs to be cleaned. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07NJ28T1X | | ASIN | B07NJ28T1X | | Best Sellers Rank | #13,320 in Pet Supplies ( See Top 100 in Pet Supplies ) #110 in Aquarium Filter Accessories | | Brand Name | Seachem | | Customer Reviews | 4.4 4.4 out of 5 stars (2,652) | | Date First Available | February 15, 2019 | | Global Trade Identification Number | 00000116065818 | | Included Components | Filter media | | Item Type Name | Aquarium Filter | | Item Weight | 0.01 Ounces | | Item model number | 6581 | | Manufacturer | Seachem Laboratories | | Manufacturer | Seachem Laboratories | | Model Name | Tidal Filter 35 | | Model Number | 6581 | | Product Dimensions | 6.25 x 5.12 x 8 inches; 0.01 ounces | | UPC | 000116065818 | | Unit Count | 1 Count | | Warranty Description | 3 year warrenty | ## Product Details - **Brand:** Seachem - **Global Trade Identification Number:** 00000116065818 - **Included Components:** Filter media - **Item Weight:** 0.01 Ounces - **Manufacturer:** Seachem Laboratories - **Model Name:** Tidal Filter 35 - **UPC:** 000116065818 ## Images ![Seachem Tidal Power Aquarium Filter - 35 Gallon Large Fish Tank Filter,black - Image 1](https://m.media-amazon.com/images/I/4107gpItzYL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: What is the minimum space you need behind the tank to fit this Tidal 35? I only have about 3 inches to the wall.** A: Unit Length: 6 ⅛ in (15.5 cm) Width: 5 ⅛ in (13 cm) Height: 7 ⅛ in (18 cm) Media Chamber Length: 5 ⅜ in (13.8 cm) Width: 2 in (5.2 cm) Height: 4 ⅞ in (12.5 cm) Wall Clearance 2 ¾ in (7 cm) Tank Trim Clearance 13⁄16 in (2 cm) Internal Tank Clearance 1 ⅜ in (3.5 cm) **Q: Is this difficult to shrimp safe?, or would you recommend leaving as is?.** A: I don't think this filter can be made shrimp safe. I would recommend the Aquaclear filter and covering the intake with a Powkoo intake filter sponge. **Q: What is the widest the rim can be to use this?** A: 1 inch **Q: Will this fit my 36 gallon bow front** A: Yes it will fit on the back side of tank that has a straight edge. Awesome filter( surface skimmer is a huge plus) only filter that has one. Also purchase a bag of Purigen by Seachem and add it to the medium section of the filter. Polishes the water to be crystal clear! You won’t be disappointed!!! ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great filter *by J***P on December 31, 2025* These are hands down the best HOBs on the market. Large media area, self priming and QUIET. If you hear a raddle, fidfle with it. Lube the impeller and run pump (in water) w/o the filter.. it should be quiet. If its not, its the impeller, if it is, theres something in need of adjustment within the housing. Easy stuff. Dont worry, it feels scary tweeking them at first, but they're sturdy. Done right, this is a great system. Its reliable, and I can sleep with it running (and I'm picky as they come). I have 2 35's and a 55. They have a minor flaw with the intake if you have shrimp but course sponge or ACO has an answer. Over all, for the price, you can't beat it. ### ⭐⭐⭐⭐⭐ Perhaps best filter for a small fish tank *by C***I on August 14, 2020* This could very well be the best HOB power filter for a small fish tank. By small, I mean tanks less than 30 gallon. The Tidal 35 has some standout features that make it an excellent choice for a small tank. It is capable of comprehensive filtration: biological, mechanical, and chemical. I say "perhaps" because I have not tried the newest Marineland Penguins. I owned an Emperor 400 many years ago and threw it away because it was a pain to prime the pump after a water change. I understand that issue has been resolved in the new products from Marineland. Anyway, back to the Seachem Tidal 35. This filter's most important feature is the internal (In the tank) motor. This filter will restart even if the media box is completely dry. It does not rely on siphon to work. It is a "push" system. The impeller is inside the fish tank, below the water level. The impeller pushes the water to the filter. This means it will restart reliably after a power failure. There is never any need to prime the filter. Priming means to add water to the filter box in order to start the siphon. The Seachem does not require manufactured filter media. Yes, you can roll your own. Your knowledge and choice of materials will determine the effectiveness of the filter. The size of the filter box will allow you to pack a lot of filtration material. More than enough for a 35 gallon tank. There are other very good power filters on the market. I also love the Fluval C series and the Aquaclears. The Fluval C series has the advantage of having the biological media above the water level. Thus, the Fluval C series has a small wet-dry area to grow beneficial microbes. Biological filtration is greatly improved when your media has exposure to the atmosphere. Bacteria thrives on oxygen. So this is where the Fluval C series and the Marineland filters have their advantage over the Seachem Tidal. However, most situations do not call for maximum biological filtration efficiency. Bacteria grow on every interior surface of your tank. Even submerged media will have more than enough capacity to provide biological filtration for the filter's rated gallons. This Seachem will easily handle the biological load for its rated capacity. This is a great product from Seachem. It is made for them by the Italian maker, Sicce. Yes, it is more expensive compared to its competitors. But the fact that you do not need to prime the filter is a big convenience factor. It also makes the filter more dependable. The surface skimmer will work great if you have carbon in the filter box. Otherwise, it will not be able to remove surface oils. You can reuse or repurpose the small zip bag that comes with the filter. I have freshwater clams in this fish tank. Therefore, I do not want to filter out the floating debris from the water column. Clams are filter feeders. This filter's main purpose is to provide biological filtration and water circulation. I removed the foam filter. I am only using the bag of Matrix biomedia. This allows small particles, such as phytoplankton, to pass through. At least most of them. I either reduce the water flow or turn off the filter when adding phytoplankton to the tank. I also have a Seachem Ammonia alert in this tank. Yes, adding liquid phytoplankton adds to the biological load of the tank. But the clams have to eat too. The Ammonia Alert will let me know if a spike should occur. This is a great filter. I can recommend it without any reservations. For bigger tanks, you might want to also check out the newest Marineland Emperor Pro 450. I have not owned the newly redesigned Emperor. It is only for big tanks. The Tidal 75 is probably its biggest competitor. ### ⭐⭐⭐⭐⭐ Great customizable filter *by R***R on February 9, 2023* Great overall filter. I am new to aquariums and did a lot of research to find this, glad I did. Features I particularly like: ** self-priming -- particularly fantastic for power outtages, absent-minded family members who don't think about restarting pump when you are at work, and when you have to do water changes and need to restart. Worth the extra coin. ** customizable media -- Do yourself a favor and read up on filter media (chapter 7) at aquariumscience dot org. I removed the seachem rocks and replaced with 8 plastic pot scrubbers to increase biofiltration surface area. ** cleanability?? -- based on aquariumscience dot org website, you will do better NOT to clean your filters regularly as the filter company suggests. This will allow you to build up your biofiltration in the filter media and get clean water faster. ** overpowered for my 10 gallon tank -- this 35 gallon-worthy filter is enough to create airflow in my 10 gallon tank so I don't need an extra pump. It should be enough if/when I upgrade to 20 gallon. ** quiet sound -- only really hear the waterfall effect. If you are new to aquariums and/or having problems with your current aquarium, read up on evidence-based aquarium management at aquariumscience dot org. I really wish I had found that page BEFORE I bought all the fancy media (this filter pump is still a good purchase, though!). ## Frequently Bought Together - Seachem Tidal Power Aquarium Filter - 35 Gallon Large Fish Tank Filter,black - Seachem Tidal 35 Filter Replacement Foam (2 Pack), Blue - Seachem Laboratories Tidal 35 Polishing Pad (2 Pack) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/105389272-seachem-tidal-power-aquarium-filter-35-gallon-large-fish-tank](https://www.desertcart.hr/products/105389272-seachem-tidal-power-aquarium-filter-35-gallon-large-fish-tank) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-22*