whafish
Aquarium Advice Apprentice
This has been an invaluable group for me as I have begun my journey as a fishkeeping enthusiast. One issue I've encountered in a small tank I recently cycled (fish in) is a band of dark matter below the surface of my substrate-Seachem Flourite. https://www.seachem.com/flourite.php
This is a small (10g) community tank with Guppies, Guppy fry, Corys, a few shrimp and two mature Mystery Snails. The substrate is about 1.5 inches deep. The tank is cycled with good levels (ammonia/nitrite/nitrate). PH 7.2, Temp 78 F/26c. The fish are all healthy and actively feeding.
What is it and is this something to be concerned about?
This is a small (10g) community tank with Guppies, Guppy fry, Corys, a few shrimp and two mature Mystery Snails. The substrate is about 1.5 inches deep. The tank is cycled with good levels (ammonia/nitrite/nitrate). PH 7.2, Temp 78 F/26c. The fish are all healthy and actively feeding.
What is it and is this something to be concerned about?