[veronicak5678]

I am planning on stocking my 20 gallon with 4 cory cats, a group of about 4 hatchets, and a group of about 8 rummy-nose tetras. Is this a good amount? Will the fish be OK? Also, I have black fluorite sand on the bottom of the tank, will the corys be OK with that?

 

[Fishboydanny1]

that setup is fine

 

[timbo83]

looks good to me. if its a 20 long you could even add a few more corys