I have lost a sailfin tang, clownfish, and blue damsel does in the past week. I have a 36 gal tank that’s been setup for 9 months. My parameters are:
Salinity 1.027
Alkalinity 138
Alk (dkh) 7.728
pH 7.9
Phosphate .9
Calcium 387
Magnesium 1249
Ammonia 0
Nitrite 0
Nitrate 43
What could be the problem?
![2D85E90D-AEA3-4B3B-B658-479CF29FC1DC.jpeg 2D85E90D-AEA3-4B3B-B658-479CF29FC1DC.jpeg](https://www.reef2reef.com/data/attachments/2879/2879089-3eff2c234998bbff4862027a7eb93450.jpg)
Salinity 1.027
Alkalinity 138
Alk (dkh) 7.728
pH 7.9
Phosphate .9
Calcium 387
Magnesium 1249
Ammonia 0
Nitrite 0
Nitrate 43
What could be the problem?
![2D85E90D-AEA3-4B3B-B658-479CF29FC1DC.jpeg 2D85E90D-AEA3-4B3B-B658-479CF29FC1DC.jpeg](https://www.reef2reef.com/data/attachments/2879/2879089-3eff2c234998bbff4862027a7eb93450.jpg)