Ugf

[rockyanvil]

I have under gravel filter(UGF) with CC substrate. I wanted to remove UGF it. My tank is 1 month old. there is trigger fish in my tank. How to remove this UGF? Should I remove the water as well? Im afraid the ammonia,Nitrite,nitrate will affect my tank.

 

[col]

What are you going to use for filtration when you remove UGF.
If for example you were going to use a cannister filter - You need to set this up running for a while (few weeks maybe) before you remove the UGF.