Hi Fellow reefers..
Really need ur help on this one. I purchased a purple tang from pasir ris fish farm....the tang was in bluish colored water..so i asked the owner if it's sick..and she said she just done wif the fish's quarantine. So i bought the fish ad put it into my tank. Den a few days later..i discovered tat the fish seems to have white dust on the body. I tot there's nothing wrong. Den I included a yellow tang into my tank. Both tangs seem to be fighting. But after awhile..they seem to be ok. Another few days later..i woke up to find both tangs dead. My black nemo (think it's called the samba clown or something) oso died. 3 fishes died overnite.
I checked my water parameters. Everything's ok. Kh - 9, NO2 - 0, N03 - 25, Ph - 8.3. I still duno what went wrong. But i noticed that after adding the purple tang initially, my black nemo was quite 'sluggish'..he keeps swimming near the sandbed..not very active.
After the death of these 3 fishes...i have a remaining of 1 common clown and 1 fire goby. Den i purchased a blue tang and an angel 2 days ago. Added them to the tank..and just yesterday...my common clown, blue tang and angel all died. The water parameters are still all ok...as above.
The funny thing is that my starfish, cleaner shrimp and hermit crab are all still alive and doing well. I thought the cleaner shrimp will be extremely sensitive to bad water quality? If my fishes die due to the bad water quality....shouldn't the shrimp be the first to go?
What could be the cause of it?
I'm guessing these few...
1) Parasite? That white dusty thing on the purple tang? Is that parasite and did it spread to the rest of the fishes? Also, i noticed that the purple tang has slightly torned fins.
2) Overdose of the Part A and Part B trace elements thing? I normally add 1/3 cap..but i added 1/2 cap accidentally.
3) My tank is crashing?
Thanks for taking the time to read this lengthy prob...hoping you guys can help me out here....