I have a 20 gal aquarium that I am using for a sump it has no partitions and all the air bubbles from the skimmer are going in my main tank. Any suggestions would be helpfull.
Try to get 2 or 3 filter socks so you can change them out ever 3-7 days to prevent Nitrates. That way you have another one to swap out while washing the other. Just don't use regular clothes detergent. Use only bleach & water.