Calcium Reactor Algae

[Big Country]

My calcium reactor is sitting on top of my aquarium stand behind my tank so it has all 4 of my 250w MH lamps and my refugium Par38 lamp all casting light on it. Should hair algae grow inside of the reactor? I started out seeing green on the inside of the reactor and now I'm seeing actual hair algae in there. Didn't think that algae could grow at PH 6.6-6.7

[Marc Weaver]

I left one of my power heads in a container of vinegar water for a few weeks while I was not using it and the hair algae lived through it. It didn't grow, but it did not die either and was still attached!!

[Big Country]

Would it be a better idea to move the calcium reactor to a position under the stand where it could still drip into the sump but would be in a lower light area? Should I clean out the reactor to get all of the algae buildup out of it now?

[gilmour01]

i cut a piece of black vinyl and wrapped it around my reactor to keep the light out.