- some good things have been said in this thread, I won't repeat them. Personally, since I began running UV
on my tank I have had NO ich on purple or regal tangs. I also invested in cleaner shrimp as well, and have put NO chemicals in the tank at all. I know I had a bad outbread just prior to buying the UV
, I lost 3 fish and my regal tang was looking bad. Between the shrimp and UV
, I have had zero problems
I recommend this route the most - shrimp will eat the parasites on the fish, and the UV
will get the free-floaters. After enough time has passed, you will get them all. I noticed less and less ich on the tangs and after about a year, zero. This level has been stable at zero for the last year as well.
Make sure you are NOT buying a 'pond' uv
unit - they are no good for saltwater. Flow rate is too high, I belive they are not for killing bacteria but only for killing larger algae cells. I would make sure you are buying a unit with a quartz sleave, as glass will block some UV
and render the unit a waste.
Look into how easy it is to clean the unit. I gave up on my coralife unit some years ago because there was no way to clean it, on the inside of the quartz sleave. The AQUA unit I got when ich nearly wiped my tank out is pretty good. The entire thing comes apart for easy cleaning every few months.