I have 1 gallon fish tank, how do i use this product? do I need to do a water change after first dips?

Seachem states: For 1 hour dips, use 3 mL per 4 L (1 gallon*). Dips may be extended if fish show no evidence of stress. It says nothing about a water change.

Does this kill leeches and leech eggs? Will be used in quarantine buckets for plants and decorations, not the tank.

Malachite green whish is active ingredient kills them so in theory yes it should work. I've used it for hdras and flukes which both tend to be more hardy than leaches.

Will this cause ammonia spike? Or, kill any beneficial bacteria?

I personally didn't have any problems. I used a half dosage twice a day and it worked well. I would use caution though with sensitive fish.

I have 37 gallon tank and how many times do i use to cure the ich?

I used a capful for my 37 gallon tank and followed the instructions on the bottle for the amount of daily treatments. Hope this helps. It cleared my tank of ich and will take care of any parasites. If you have shrimp. etc it might be too strong for them...I only had fish.

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Seachem for external fungal/bacterial/viral lesions ParaGuard 100ml

Product ID: 12204032

Details

Brand
Seachem
Item Form
Liquid
Item Weight
4.2 Ounces
Liquid Volume
100
Number of Packs
1

🌊Safe for fresh & saltwater

💧10% aldehyde formula

🛡️Fish & filter safe

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€ 30.67

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛡️ Protect your aquatic community with the ultimate parasite shield!

TRUSTED PROVEN - Top-rated with 4.6 stars and a staple since 2004 for serious aquarists.
FISH FILTER FRIENDLY - No formaldehyde or methanol, pH stable, and safe for delicate aquatic life.
UNIVERSAL AQUARIUM USE - Perfect for both freshwater and marine tanks—hospital and quarantine ready.
FAST ACTING EFFICIENT - Synergistic formula delivers rapid treatment without toxic side effects.
POWERFUL PARASITE CONTROL - Eradicates ich, fungal, bacterial & viral lesions with a unique aldehyde blend.

Seachem ParaGuard is a 100ml liquid medication designed for effective treatment of external fungal, bacterial, viral lesions, and parasites in freshwater and marine fish. Featuring a 10% aldehyde-based formula free from formaldehyde and methanol, it ensures fish and filter safety without altering pH. Ideal for hospital and quarantine tanks, ParaGuard is a trusted solution for maintaining healthy aquatic environments.

Specifications

ASIN	B000255R3I
ASIN	B000255R3I
Allergen Information	Yam Free
Best Sellers Rank	#32,961 in Pet Supplies ( See Top 100 in Pet Supplies ) #302 in Aquarium Water Treatments
Brand Name	Seachem
Customer Reviews	4.6 4.6 out of 5 stars (1,683)
Date First Available	June 20, 2004
Global Trade Identification Number	00000116060509
Included Components	Seachem ParaGuard 100ml
Is Discontinued By Manufacturer	No
Item Form	Liquid
Item Type Name	Medication
Item Weight	4.2 Ounces
Item model number	001273
Liquid Volume	100 Milliliters
Manufacturer	Seachem Laboratories, Inc.
Manufacturer	Seachem Laboratories, Inc.
Manufacturer Part Number	605
Model Number	001273
Pet Type	Fish
Product Dimensions	0.16 x 1.61 x 0.16 inches; 4.2 ounces
Target Species	Fish
UPC	015568977237 000116060509
Unit Count	3.4 Fluid Ounces

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