I have a naso tang and a longnose butterfly with ick. But my question is that I an u.v. sterilizer the bulb is only three weeks old. the fish didn't have it when I put them in the tank.
I'm not hearing the question? What specifically do you want to know. The UV alone will not cure the problem. Are there other fish in the tank? Do you quarantine new fish before adding them to the display?
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