Two of my corals (happen to be the ORA acropora corals) start sloshing off tissue right after I swap out my filter socks. What happens is they get hit with a ton of microbubbles because ELOS sumps have zero micro bubble trapping. Anyway, I notice that when the microbubbles go nuts in the tank, these two corals start slewing off their tissue in strings of slime. It's not pretty. The other corals all seem fine and happy. pH looks fine off two lab grade pH probes, fish are happy, all other acros are happy as well. I rinsed the socks in some RO/DI water first too, just in case. Any ideas?