I have 3 panda cory catfish in my nano tank. will this hurt them or eliminate their food source?

Not at all. I have the same Corries and they are fine. I used this product all the time and it is great, you will see great results over time no more than 3 to 4 weeks your filter(s) are cleaner and the debris/waste is less.

Is it safe for snails?

Hasn't killed mine and I use it when I clean the aquarium

Can this be used with sand substrate

You can use it with sand substrate.

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Fluval Waste Control Biological Cleaner, Aquarium Water Treatment, 8.4 Oz., A8355

Fluval Waste Control Biological Cleaner, Aquarium Water Treatment, 8.4 Oz., A8355

Product ID: 458500863

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Details

Brand
Fluval
Liquid volume
2.5E+2
Item weight
318 g
Item form
Liquid
Manufacturer
Rolf C. Hagen

🌿All-natural Bio Scrubbers

🧪Treats up to 500 gallons

♻️Reduces organic waste fast

Description

♻️ Keep your tank sparkling clean and your fish thriving—naturally!

NATURAL SAFE FORMULA - Bio Scrubbers promote a healthy ecosystem without harsh chemicals.
MASSIVE COVERAGE CAPACITY - One bottle treats up to 500 gallons—perfect for large or multiple tanks.
EFFORTLESS AQUARIUM MAINTENANCE - Cut down tank cleaning time with powerful organic waste breakdown.
VERSATILE FOR FRESH SALTWATER - Use confidently in any aquarium environment, from tropical to marine.
OPTIMIZED FOR NEW ESTABLISHED TANKS - Ideal during setup, water changes, or filter swaps to keep water pristine.

Fluval Waste Control Biological Cleaner is an all-natural liquid treatment designed to reduce organic waste buildup in both freshwater and saltwater aquariums. Treating up to 500 gallons, it uses Bio Scrubbers to break down fish waste, uneaten food, and decaying matter, significantly lowering maintenance needs and promoting a healthier aquatic environment. Ideal for new setups and ongoing tank care, it pairs best with Fluval Cycle Biological Enhancer to maintain optimal water quality.

Specifications

Product Dimensions	5.84 x 5.84 x 15.24 cm; 317.51 g
Item model number	A8355A1
Breed Recommendation	Small Breeds
Pet Life Stage	All Life Stages
Flavor	Waste Control Biological Cleaner
Item Form	Liquid
Allergen Information	Allergen-Free
Color	White
Size	250
Volume	250 Milliliters
Number of Items	1
Quantity	1
Special Features	Lightweight, Portable
Specific Uses	Indoor
batteries required	No
Batteries Included	No
Item Weight	318 g

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