I have had this tank up and running for 6 months now and I just put in some new corals last November and a cleaner shrimp in beginning of last month and my tank was looking good. And then I changed the media out in the filter to restock the carbon and instead of putting small amount of chemi pure elite I just put the whole mini bag in. And then all of a sudden I started getting diano Allege and the ph dropped to 7.4 and all the coral aren’t as happy and out. Do any of you know what might be the problem
2.4 gallons
Ph 7.7
No3 .01
Ph 0
Sg 1.025
Before-January 19
After-now
2.4 gallons
Ph 7.7
No3 .01
Ph 0
Sg 1.025
Before-January 19
After-now