I've read that Flagfish are nippy so I wouldn't keep it with a betta. You'd probably be better getting some shrimp, although they don't eat all types of algae (but, what fish does......except maybe the flagfish...lol). Cherry Shrimp would be nice.
Of course you don't have to have an algae eater in every tank.
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*Kristin*
5 Planted tanks:
55g, 40g, 29g, 20g, 5.5g
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