Fish overboard!

[YankeeTankee]

I'm considering one hole drilled beside my overflow for water return from sump and or drilling 2 holes for a closed loop. I'll likely end up using loc lines from above to return but I'm curious about the following...

Don't people have issues with fish/snails getting sucked into the intake hole of closed loop? Do people use plastic screens/strainers to prevent this?

If I were to return water vial a hole beside overflow then when I turn off my pumps, before the water level drops, something could move into that pipe so do folks use plastic mesh/screens there as well?

Basically what are the different approaches to keeping life out of those pipes?

 

[lapin]

I had a closed loop on my 125G Reef flo dart pump. I used a duriso stand pipe screen. Shrimp would clean the screen
90 degreee elbow so it would sit flat with the side of tank

Intake Strainer

These are used to "strain" the water entering the Durso Standpipe to keep large objects out (like snails) which might accidentally enter the standpipe and reduce or stop the water from flowing down to the sump. 1.25 inch strainers are designed to slide into a standard 1.25 inch fitting (such as...

shop.dursostandpipes.com

 

[BlennyTime]

I had a closed loop on my 125G Reef flo dart pump. I used a duriso stand pipe screen. Shrimp would clean the screen
90 degreee elbow so it would sit flat with the side of tank

Intake Strainer

These are used to "strain" the water entering the Durso Standpipe to keep large objects out (like snails) which might accidentally enter the standpipe and reduce or stop the water from flowing down to the sump. 1.25 inch strainers are designed to slide into a standard 1.25 inch fitting (such as...

shop.dursostandpipes.com

I used the Aqueon overflow kit with a screen similar to that, haven’t had an issue of something getting in for all the years I’ve been running it.