If vertical clearance in yoour stand is an issue (ie, can't raise up skimmer if need be) make sure you design sump to proper water depth for skimmer . I'm not sure what is reccomended for the Tunze's but might wanna double check before cutting/gluing in your baffles.
Also, being that the skimmer is only abouot 5x5 you may wanna devide the skimmer section off with some egg crate and pile in some more rock / rubble
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-captainhemo
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