I had the same issue. Aggressive chromis. My method: Bait and net. The net part is a b*tch. You have to lure it towards the surface with food, and with lightning speed net the little sucker. Took me three days
So informative! Thanks for all your ideas. NEXT QUESTION: is it ok to add kalkwasser solution to the ATo reservoir? The instruction manual on the tunze osmolator warns against it.
I have to say... I had a mag3 and it broke after 2 months. Went to petco and am so happy with the return pump I bought from them. It is very quiet. Adjustable flow. I know most of us hear the word petco and run the opposite direction, but if you're looking for affordable and quiet give this a shot.
Hey! Have you tried raising the level of your protein skimmer? I find that if I can't dial it back enough to where it doesn't over flow, if I raise it a couple inches, it'll work much better. I used a small flat bowl that I placed upside down in my sump.
http://www.marinedepot.com/ViaAqua_Poly_Reactor_(Multi_Media_Reactor)_Phosphate_Reactors-ViaAqua-VA3311-FIFRISPR-vi.html
Search ViaAqua poly reactor. Great for tight spaces.
Used for 3 months. Works great! I decided to upgrade to a dual reactor brs unit. So selling my gently used ViaAqua reactor. Included is a petco king100 pump that I bought for it. Asking $30. Pick up in UWS Manhattan.