Who Gives A Fish Forums

Another tip: if you're using beef heart, freeze it first and grate it super fine. Makes it easier for the fry to eat and reduces waste. My tank's got a thin layer of sand, but bare bottom is probably better for fry.

Yep, bare bottom is the way to go. Easier to siphon out the gunk. Also, don't forget to check your TDS, high levels can stunt growth. Mine's around 150 ppm, seems to work fine.