Has or does anyone ever clean out the overflow?

[Jonathan blackwood]

So a month or so ago I recently made a durso standpipe to silence the noise of the water drop. And it works amazing :) but I've recently noticed that there's now quite a bit of algae growing there in the overflow. .. and I don't want it to seed into my main tank or sump. Do I clean other out? Put snails on there? Or just leave it ?

 

[twilliard]

I use a toothbrush on mine to pull any algae out.
The nice thing about an overflow that you can redirect into a bucket is that you can use h2o2 within the overflow, let it sit then drain into a bucket.
That kills the algae within the overflow

 

[NanaReefer]

Covering it helps a bunch [emoji2]

 

[DannyB]

Covering it helps a bunch [emoji2]

What do you cover it with?

 

[Jonathan blackwood]

So the lights don't hit it correct ?

 

[NanaReefer]

Exactly. Anything you can think of that won't allow light penetration. Make a cover for it. Egg crate + Black plastic= a box type cover. Even black window screen doubled up would work.