This my first oceanic 30g biocube custom sump and LED lights.. Fish 2 onyx snowflake clown, small hippo tang , blue chromis fist fish I aded, peppermint shrimp he is in the sump, tiger pistol shrimp and orange stripe goby...
here is something similar to my second one just the pipe goes all the way down to the bottom of the third chamber it's like 1/2inch from the bottom or 1 inch