Just a suggestion, if you're going to get a UV for parasites - make sure you get an oversized version - otherwise it will likely not help. Additionally - there is a bit of debate (not going to say which side I'm on) - that in reality they do not do much good. Are you planning to treat with copper for 30 days? Also note - if you take the tang out - you may find that the other fish may come down with it.yeah I don't really see taking all of the fish out as a possibility unfortunately. though by the time the tangs go back in the UV will have been running on the DT for 2 weeks
thanks yeah I think I'm going to drop them in at 2ppm and increase to 2.25 over 24 hours and make sure there's no adverse reactions then go up to ~2.4