Removing Encrusted Corraline Algae from a used tank

[lapizzaro]

I just purchased a used all glass tank which has encrusted corraline algae all over the overflow section (megaflow ie the
plastic piece ) obstructing some of the holes. The tank is reef ready and there is coraline algae on the sides of the tank.

Ironically I love it but I must clean it for proper operation.

Any advice on removing it. Currently I have filled the tank with tap water hoping the algae would soften up and disolve since there is no calcium, magnesium in the water.

Any ideas

 

[itstheantitang]

Hate to say it, but, you could drain the tank and use a dremel in between the nooks 'n crannies of the overflow.

 

[navajo]

Soak it down with vinegar and it'll soften up a LOT then you just wipe/scrape it off. Then rinse it well.

That's what I did on the used 75 and 200 GAL I got. Works like a charm.

I just filled a spray bottle with Vinegar and water (about 1/2 and 1/2) and kept it soaked for a few minutes then went to town with one of those green pads you get from the lfs for scrubbing algae off tank glass.

HTH