Foam/small bubbles

[Coonie]

just wondering if anyone has seen or knows how to get rid of...or y even there is like a white foam/bubble build up at the one corner of my tank? little flow there....builds up along glass in corner...coral only tank

thanks

 

[reeffreak]

Usually see that when sand was recently added. I would say add more flow away from that area if you can place a PW in that corner ad direct it towards the overflow