SoCalMom
Fishaholic
you know, i found shrimp in my little tanks made the water go cloudy, also, but in the big tanks with filters it doesn't matter how many you put in. i was feeding those algae wafers too, and honestly i think it's THEM that cause it more than the shrimp. your little pieces may have been disappearing because they dissolved, which could create a number of reasons for the cloudy water (food particals, algae bloom, bacteria bloom)
Buying shrimp to keep the water cleaner is silly. They can't feed on scraps when there are none (and there are rarely scraps in a betta tank) and they often need to be fed seperately anyhow, like any other fish. If overfeeding was a habit, then they might do you some good, but otherwise, all they're gong to do is add to the bioload. after all, what goes in, comes out.
I've been thinking about it and I agree with you. I have never gotten algae in my tank, though (at least not the kind I can see)
I didn't buy the shrimp to keep the water clean. I bought them for Alfie and because I wanted to see them in action in my own tank