i have had the uv
for like a month. it said it was good for a tank 125 to 200 gal
. the tank has been up for about 1 1/2 years . i have introduced a couple new fish latly and the uv
. but like i said before i give all my new fish a bath before i put them in my tank. i see no white spot no film nothing to the eyes . so i dont know they just all of a sudden saided itching them selfs. i just put a snail in there but they killed it in a day , but i even gave it a fresh water bath. the fish that are itching are koran angle, mimic tang, dog face puffer, some black and white angle, dory, and a damsel. so i dont know??? but there is a way to clean the uv
??? thanks any more help i would app...