Long story short, old bulbs on the ATS and no GFO plus I was feeding heavily trying to dirty the tank up a little thinking I stripped the water of nutrients too quickly. I had pulled the GFO to run my ATS, but with the CFL bulbs you need to change them every 3 months. Now I have a few boxes of bulbs on stand-by. I didn't like the ATS design I was running so I converted it back to a fuge and started back on GFO. I never had GHA in this tank until that point, but it was pretty bad at one point so I had to do something about it.






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