Hello! Our 65 gallon tank has been established for roughly a year. About 3 months ago, we got a yellow tang; and 3 weeks ago we got a hippo tang. Two weeks after adding the hippo tang our yellow tang stopped eating and was hiding behind the rocks. Two days later he died, and looked awfully emaciated, so we decided to up the feeding. We used to feed once daily with Life Spectrum dry food and green seaweed, with mysis shrimp once a week. When the yellow tang died, we started feeding twice a day and giving shrimp more often. But a week later, the hippo tang stopped eating and began hiding behind the rocks. Now it's laying on its side and also has some white dots on him (I have pictures). The other fish in the tank are 2 clown fish, a damsel, lawn mower blenny and a sifter goby. We also have a xenia and kenya corals. Except for the tangs, everybody is seeming to do all right. We have snails to control algae (one died though just yesterday). The tech of the tank: 1 power head, a protein skimmer, two aerators, and a heater. The last partial water change was 11 days ago and the temperature is 80 degrees. What do you think this is and what should we try next? My dad sanded a small amount of copper particles into the skimmer and also wants to add some formaldehyde for the white spots but we are agreed that this should have been done in quarantine only, not the whole tank. Please give feedback!
Last edited:
