ok one thing no one has asked is how tall is the tank, if it is 24" then 400's will be fine, if it is 18" then ya you can use them but I would be carefull getting things used to the light.
Steve
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 *everything said above is just my opinion, and may or may not reflect the views of this BBS, its Operators, and its Members. If cornered on any “opinion” I post I will totally deny having ever said this in a Court of Law…Unless I am the right one*
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