eerie
Member
I have a 90g tank that I've had set up for a few years now with 100p of live rock and a couple air stones. I just found out that air bubbles aren't good for a saltwater set-up and that I should use a protein skimmer instead. My tank has been doing fine without one for years now, but do you think it's necessary to purchase one? If so, which one would you prefer? I'm on a little bit of a budget.