Hey guys I just started a 90 gallon tank about a month ago I couldn't wait to cycle the tank so I added bacteria a few days later I tested the water and all the levels were good so I bought 2 clowns and a yellow tang but the tang killed both the clowns. So I got rid of the tang and bought a coral beauty and 2 clowns they were good eating and pretty active till a week later I added a yellow tail fang blenny. I woke up one morning and they clown and beauty were acting weird, I went to run some earrns when I got home the clowns and beauty were dead. Turns out the ph was at 7.0 so maybe that killed them off but now almost a week later my blenny is starting to act weird I haven't seen him for a few days till today he was up against a corner. I reached in the tank to touch him got pretty close and out of nowhere he shot up and bolted to the other corner. I grabbed the net to catch him and he wasn't moving for a bit. Any idea what might be going on?? Please help me ice invested so much time and money to give up.