Hi, I’ve been having some difficulty with my mixed reef tank. My ph has been continually dropping no matter what I do. We had to do a mad boost of bacteria because the cycle had dropped due to adding a large group of clean up crew. But I can’t get the ph to raise and stay raised. It keeps hovering around 7.8. I’ve been using aquavitro balance to try to raise the ph without raising kh but the kh is still going up slowly. I can add balance and get the ph up a few points but then a few hours later it’s back down. I have a 55 gallon tank with 4 seahorses as my main livestock. A pistol shrimp and peppermint shrimp, starfish (who keeps twisting himself up when the ph drops) some mushrooms, a Kenya tree, emerald crab, feather duster (with no crown now) like 17 hermits, 3 astrea snails, 1 olive snail, 4 margarita snails. Turn over rate is 500gph with a protein skimmer. (Skimmer has been off for bacteria boost) calcium is good, phosphates are good, ammonia and nitrates and nitrite are all high due to regaining cycle. Have done water changes to no avail. I really need to figure out why the ph won’t raise and stay. Any help would be greatly appreciated. I’m really worried I’m gonna loose my guys. I’m this close to taking to my lfs to quarantine while I get my tank figured out