I believe UV sterilizers help with ick and have one on all my tanks. Some people say they are not effective, but i think they are a good thing to have and have had no problems so far. The amount of flow is very important for parisites low flow with a high dwell time is the best for IMO.
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Hey! I never "LEFT" the hobby, just doing fresh water now. Which is still listed as part of Canreef if I'm not mistaken. 
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