NinjaTetra
Aquarium Advice Freak
- Joined
- Dec 22, 2012
- Messages
- 298
I am setting up a 37 gallon tank right now. One side is going to be heavily planted, and one side will have a decoration and some dwarf hair grass or baby tears. I plan to have 6 peppered corydoras as bottom dwellers, so I want a sandy substrate. I know some people say gravel is okay, but I want a safe (while still being inexpensive) substrate. There is a sandy plant substrate that looks good except for some of the pieces are up to 8mm..... Most are between 2 and 3 mm. I have heard that I could later 1 inch of that and put sand on top, but then the sand leaks down. Is fluorite okay for corydoras? Thx