#hob

Hey everyone, I’m running a hang-on-back refugium on my 55-gallon, and the issue is that the glass panel of the refugium sits right against the wall. That makes it hard to mount a refugium light or do maintenance back there. The unit has a small built-in skimmer, so I’m wondering...

Hello! I am considering buying a 40b tank for saltwater and I’m thinking of experimenting and using a HOB filter. Now I know a HOB filter will NEVER be as good as a good old sump but I believe it can come somewhat close. I would put in some chemi pure blue, a poly filter pad, and possibly some...