would it be wise to use a uv on a mixed reef wat r the positives and negatives i currently have a 120 with corals and fish but have lost some fishes and really dont y ive had my clown fish 2 chromis and my anthias jump out i lost my yellow n purple tang i was only able 2 save the clown only bcuz he jumped out when i was addin water to my ato resevoir would puttin a uv help?