- Joined
- Aug 18, 2019
- Messages
- 36
- Reaction score
- 6
I have a 20 long reef tank drilled out with a 10 gallon sump, system has been up and running for about 5 months with no issues, the original stocking was 3 yellow staghorn damsels, one traditional ocellaris clownfish, one starry night blenny, and one tomini (flamefin tang). Everything was running smoothly for 4 months, started with the 3 damsels to cycle, and once parameters were stable I moved the clownfish and the blenny in from my old tank. I purchased the tomini tang as a last resort to try to control a hair algae outbreak. Within the past month the fish started dropping, it started with the starry night, it ate before I left for work and when I came home it was dead, same with the tomini tang the next day, and the third day the clownfish. I assumed the damsels were going on a rampage and killing the fish, so I tore down the tank and moved them into my 75 gallon tank. I purchased a yellow clown goby and a blue head pink damsel to try to start new (my corals and inverts were never effected and my water parameters were still stable) and after a week I purchased a juvenile orange shoulder tang to grow out to eventually move to my 75 gallon, then the fish started disappearing again, the first the damsel, then the clown goby, then the tang. I'm running out of options, I have more than enough biological media than I should need (about 3 gallons worth of ceramic media) and throughout this my water parameters have been stable and weekly 20% water changes have been done. Ive asked my LFS if they have any ideas but theyre unsure of what it could be, I'm running out of ideas/solutions and I don't want to keep buying fish and having them disappear.