I've been seeing a lot of you swear by them so I gave them a look and have a couple questions.
1. Do you use the cage? Manual says not to run without but this is the clean part of a sump and not a pond so I'm not sure it's needed.
2. How big are the cages?
1. Do you use the cage? Manual says not to run without but this is the clean part of a sump and not a pond so I'm not sure it's needed.
2. How big are the cages?