well.. your right.. the skimmer box in the picture doesnt look all that great.. but.. you can design one of these to only go down that far around your bulk heads and bring the depth up to shallow were the bulkheads are not.. so. instead of having holes visible you would see little boxes going up to the top of the water the shallower box shouldnt be hardly visible from the front of the tank.. the idea gets more surfase water to your skimmer were the protien floats..
I would feed all the water from the box to my skimmer then let the output of the skimmer feed the fuge and only put as much flow as the skimmer could handle though the sump.. and make the rest of the flow with a closed loop.. these system flow design desisons are JMO
I can understand not wanting it in the tank.. heck you could cut slots all the way across the back of the tank and build a collection box that attached to the back of the tank if you were conserned about how it looks.. no ugly bulkheads.. lol JK..
Function over pretty I say!..
have you heard this one.. "that skimmer is too big and ugly" responce "it is more effective and gets the job done".. this modification isnt completeley nessisary.. it just gets that skimmer produseing more skimulate.. and Im all for that..