For 4 guppies, you could either get one of those small tanks with filters:
http://www.drsfostersmith.com/produc...=6&pCatId=3837,
or you could just change the water every day. They should be fine on just
flake food.
Bob
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Check out my pond webpage:
Http://trains99.tripod.com
Click on the My Pond Link under Places to Go
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