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I agree with the post above about not relying on a fish to take care of an algae problem, but if your into having a pleco in that tank, I would choose a rubber lipped bulldog pleco for your 160 litre. They love to have some fresh cucumber or zucchini occasionally to supplement there algae diet. Wafers are also appreciated. This site has a wealth of info in the catfish section on different algae eating catfish,
http://www.aquaticcommunity.com/aqua...splay.php?f=60
Check it out.
Warning; Bulldog Pleco guarding my Sons tank now..
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