Filter/s for 90 gallon

[aclockworkorange]

+1 on the aquaclear.

Get that, then stock it slow and save up for a mid sized canister, then add that.

Or another aquaclear.

All personal preference, but you can't go wrong with an aquaclear.

 

[yamaracer5]

I know it's more than what you want to spend but i just got my fx5 shipped for 229 on ebay. It would be a great filter for your 90!