I went out a couple of weeks ago, and got me a kole yellow eye tang. I got a quarantine tank that I always keep running, and despite weekly water changes due to it having really no beneficial bacteria because of past treatments. It seems to always get a lot of algae. The tank was empty for about a month and running but i didnt scrape the algae everytime i did a water change. I tested the water when i bought the fish and everything was good,so i put him in the tank. 5 days later my tank was as clean ...