Fluval U1 Bio-Foam Pad, Replacement Underwater Aquarium Filter Media, Black

This is a review of the Fluval U1 filter for the Fluval U1 pump It's a manufactured sponge, shaped to fit inside the Fluval U1 filter, nothing more or less. It works great in the U1. There is no bio media, no charcoal, nothing to see here but a sponge. (I think the U2 and up models have fancier filtration.) I use my U1 as a cleaning aid before water changes. I remove the fishies, immerse the U1 in the tank, plug it in and then blast the substrate with a turkey baster That blows all kinds of nasty crud out of the substrate and suspends it in the water, where the U1 can suck up the crud. I keep doing that until the water is reasonably clear. That may require removing the U1 and rinsing the filter under running water and then putting it back in for another go, especially the first time you do it. Then I do a normal partial water change. When done, I remove the filter, rinse it and set it out to dry. There's no need to replace it as long as cleans up nicely under running water. Note: if you try this method, the first time you do it you will be entirely grossed out by the amount of crud in your substrate which you probably thought was as pure as the driven snow. Stay calm and don't try for spotless the first week. Things will get better as you repeat the technique over time The main point to understand is that, at least in my experience, these filters will last a very long time without replacement if you rinse them thoroughly between uses. They're just sponges.

I rarely replace but sometimes it can turn very disguising and need replacement, this sponge lasts very long. I suggest soaking it in the aquarium for a week or two first so bacteria collects on it so your tank doesn't go nuts with the cycle. Look it up if you don't get what I mean.

I purchased a used fluval u1 filter for a very low price, and assumed I could just stick some extra foam in it that I had lying around. It would get clogged in 3-4 days and was driving me nuts. Seeing the price for the actual sponge was so cheap, I decided to give it a try. Works like a charm! Greatly decreases the frequency with which I have to service the filter.

I have this in a 10 gallon (i think) round tank with 3 fish in it and it does well. I have owned the filter for 2 months and during the first month I may have fed the fish too often because I used 3 filters within the month. I use it with the Fluval U1 Underwater Filter After figuring out a feeding schedule I only had to use 2 filters. Installation: Plug and Play for the most part.

It works well for about 2-3 weeks but I have frogs and so their small brine or worms probably clog it more than fish flakes would.

My infant turtle love this filter and the replacement cartridges last me a long time

Great product!

Great product.

I bought u1 for my 13 gallon . This is the review after 2 month. Overall it’s good, but I will need to see if my aquarium is less clear after few months.

bedzie działać

Ce produit étant en rupture de stock sur les sites d'animalerie en ligne, j'ai dû commander mes filtres sur Amazon. Certes, ils sont plus cher, mais la qualité est parfaite. Le filtre est de très bonne qualité, il filtre bien l'eau de mon aquarium, et peut durer plusieurs semaines (il suffit de le rincer à l'eau froide)

Perfecto, con la calidad fluval.

Passt, sitzt perfekt. Filterleistung für ein kleines Aquarium ok, wenn man keine allzu hohen Ansprüche stellt.