We have a 20 gallon Nuvo peninsula with 5 small damsels, emerald crabs, one shrimp, assorted corals, hermit crabs, nasserius snails, and one turbo snail. Woke up yesterday to one chromis, two emerald crabs and a shrimp dead. The other fish were breathing heavy, but the nasserius snails were up on the rocks instead of in the sand. I tested the water and did a water change.
Temp - 78.4
pH - 7.8
Ammonia - 0
Nitrate - 0
Alkalinity - 13.4 dKH
Phosphate - 1.76 (We have been struggling to get this down, dosing, GFO and water changes)
Throughout the day the fish breathing seemed to go back to normal, the nasserius snails went back into the sand. Then today I woke up to another chromis almost dead, laying on his side in the sand. The other fish breathing heavy and a few of the nasserius snails out again. Im lost on what to do or what is causing this. Thanks for your help!
Temp - 78.4
pH - 7.8
Ammonia - 0
Nitrate - 0
Alkalinity - 13.4 dKH
Phosphate - 1.76 (We have been struggling to get this down, dosing, GFO and water changes)
Throughout the day the fish breathing seemed to go back to normal, the nasserius snails went back into the sand. Then today I woke up to another chromis almost dead, laying on his side in the sand. The other fish breathing heavy and a few of the nasserius snails out again. Im lost on what to do or what is causing this. Thanks for your help!