Why do you want them covered?
what kind of standpipe/drains do you have?Getting a lot of noise coming out of them. Looking for any and all ways to quiet them down.
for the noise, I see lots of people putting in Hofer Gurgle Buster. You can make the pipe high enough so that there is less water crashing straight down, maybe make it so the holes are 3/4 of the way up. The other option are Durso Pipes but I never tried it.
I don't have drilled tanks but I have seen this done this way.
what kind of standpipe/drains do you have?
I would guess so no fish get behind there and to stop algae from growing behind them.
I would guess so no fish get behind there and to stop algae from growing behind them.