Another algae question

So I took my big ol' pleco out of the 2.5 gallon tank and put him in the
10 gallon tank. He's doing well, I guess. Hard to tell because he spends
all his time inside the fake tree stump! :-(

Now I'm getting algae in my 2.5 gallon tanks. Each holds one female betta.

I'm wondering about those chemicals(s) that are sold at Wal-Mart that
supposedly remove algae from the tanks. How do you experienced fish
keepers feel about this solution? And how do they work? Are they added
to the water while the fish are in the tank or must the fish be removed,
or what? (I'm sure the bottle will have instructions. I'm just curious
for now.)

Mostly I'd like your opinions: are they effective? are they safe?

Plecos and other algae eaters seem to get too big for the 2.5 gallon
tanks, and snails seem to be bad news due to their ability to reproduce
faster than rabbits.

Is there anything else I could get that would "eat" the algae?

I already have a live plant in one of the tanks and still have an algae
problem.

Thanks in advance for your responses.
--
8^)~~~ Sue (remove the x to e-mail)
~~~~~~
"I reserve the absolute right to be smarter
today than I was yesterday." -Adlai Stevenson

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