Dry Sump

[45gal_Reefman]

I have a 45 gal Reef and this morning I woke up the a tank full of bubbles from the return. I topped off the tank yesterday morning and have a fan blowing across the top of my lights for cooling (76 Deg. F). I have a about 12 corals in my tank and only the ones on the top 1/3 of the tank were covered by tiny air bubbles. I used a strong power head and blew all the bubbles off my live rocks and corals. Will the bubbles kill them?

 

[Anonymous]

No, the bubble will not kill them, but try not to do it too often.

 

[ReefMan75-20-15]

In your case the bubbles will not harm the corals. But if these bubbles were to stay there you would have a chance of hurting the corals. Where the bubbles sit the will create a dry area on the coral. (bad) So getting rid of the bubbles was a good thing you did. As for running the pump dry. (also bad) Try not to do this too aften ans it can harm the impeller.