Please help!! I added algae fritz clean out 3 or 4 days ago. I have a 60g. 2 clowns, 1 orange spot filefish, blue spotted puffer, and pink watchman goby. I've used this product before a few times without issues. This time the fish are breathing very rapidly and not moving. The clowns seem fine today but were very lethargic last night. I did a water change each day since. Usually only 15% but yesterday I was panicked and dod 50%. To make maters worse I must have added to much salt and my sg went from 1.025 to 1.030. I added about 2.5 gallons of rodi amd brought it down to 1.028. My ph has dropped from 8.2 a few days ago to 7.8 nitrates are only 5-10 (tanks only about 4 months old). I have a powerhead and wavemaker and added and airstone because I was worried about low oxygen but now I'm worried it's too high. Also the fish aren't eating, just the clowns are. Any help would be appreciated!!!