What Do You Use In Fry Tanks

[Heather.]

Heres my fry tank.Currently has 3 angel fry in it.. x

 

[Mo_loves_fish]

None. just gets in the way

 

[backtotropical]

Cat amongst the pigeons time!

I have sand in mine. Never caused me any problems. It just needs cleaned every so often.

 

[Darkstar]

no substrate.