Need advise

[naz42]

I have a 120g reef tank. I have recently lost a bunch of fish. Lost 3 lyertails, 1 hippo, 2 yellow tangs, and one clown. This happened about 3 weeks ago. the only 2 fish i have left are one clown and on Naso tang. At no point have either of these fish shown any signs of ich or any illness. Of the fish thst i lost a few of them showed signs of ich and others showed no signs of ich but still died. Some looked fine and were active and eat well but gone a day later. The 2 fish i have left i have had for a few months and never showed any signs of anything. Its been 3 weeks since any fish have died. At this point should i remove the 2 fish and treat with copper or just keep an eye on them for a few more weeks before adding any more fish. On another note, I know best practices are to quarintine alll fish but i dont really have time, energy, money, space, or equipment to do this. Are there any other ways to minimize deaths and parasites without QT. I have not tried any of the reef safe parasite treatments because ive always heard they dont work and are a waste of time.

 

[snorvich]

Based on the mortality time line it is likely to be more than ich, but if you saw ich symptoms, your tank must be left fallow without fish for 72 days. The two existing fish probably have ich in their gills. They must be treated with CP or copper or tank transfer and remain out of the display tank for 72 days.

If you do not quarantine, you will have this or a related problem again.