is your 250 really 60" long length?? my 300 isn't really 72" long.. techniquely it's only 71" but if you measure the plastic frame it's 72.25" long.. second i guess you have not spoken to marineland tech..my 300 deep dimension have a flow rate no more than 700gph rate each overflow box.. at time i was supprised myself.. and now here your using a 3000gph @ 4' height i feel i need to upgrade my pump now... do you have any problem with that flow rate?? i'm only pushing 1700gph @5'...
...nice
Its 60&1/4 at the plastic frame, one of the reasons I get more than 700gph is because I knocked out all over flow tabs as well and use all four bulkheads for drains and it probably closer to 2000gph, because its 5 feet up to my tank with 2 45º's and a 90º, I actually wish I would have went with a bigger pump as well
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