Blue-green algae

Figured I'd throw this into USENET for posterity...

Used Mardel's Maracyn tablets to combat blue-green algae. Dosage as
instructed on package. Cleared it up easily. The blue-green algae came
back several months later, another treatment worked like a charm.

Freshwater, 55 gal tank, fish & live plants.

Note... use Maracyn, NOT Maracyn II.

Also an observation... the algae seemed to take hold during a heat
wave. Maybe likes a tank that's a little too warm?

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Blue-green algae desription: More of a creeping coating than an algae.
Coats plants, gravel and some surfaces. Has a deep green color with
slightly bluish cast. Almost reminds me of thick cobwebs. Easily
brushed/vacuumed off most surfaces... comes off in clumps. No matter
how much it's physically removed, it seems to keep coming back.
(Maracyn treatment wipes it out though)