wiggly things in my tank

[dredge3]

I do. I'll check later for wigglers. I know it keeps the algae out though.
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those wiggleys are algae spores that have grown

 

[Smurf]

I did notice ionic use uv tubes on the parts per billion systems too

My tanks got algae in, but I was mostly concerned about legionnaires. I searched for ways to kill it, read about UV filters but found the whole house type at first. Then I read about the pond filters, and this one was rated well, decent price. it's keeping the water moving which stops legionnaires forming but the UV should kill everything!