If your tank is glass, then get a good size Mag-Float and clean your glass every other day. This will help keep the coraline from getting a good start. It also keeps your hands outta the tank.
A little preventative maintenance goes a long way.
You sit in front of the tank everyday, so why not spend a few minutes with your Mag-Float in hand.
29gal BB | 42+ lbs LR
| 143watts PC
| Asst. Leathers, Frogspawn, Hammer, XLG Open Brain, Zoanthids, Mushrooms, Diploastrea heliopora | Blue Mandarin | Atrosalarias Fuscus | Pair Captive Bred Ocellaris Clowns | Peppermint Shrimp | 6 Astrea's |