Advice on flow for my tank.

[rstar]

Just looking for some feedback on flow for my tank.

I am currently running one Koralia Evolution (750gph) and two Koralia nano (425gph) each for flow in the tank. Wanting to upgrade to something that will be a little more random, and look a little better than 4 pumps in a smallish tank.

My Options:

Add another Koralia 750 and the hydor pump timer total cost of about $100.

the pros of that are the cost really. Cons i would say are the bulkyness of the pumps

My other option is going with an Ecotech MP10 about $250 total cost

pros are alot of flow, small foot print, great controlability.

cons are the cost, no option to control direction of the flow.

My question to you all is. Is the cost difference worth the controlabiliity of the MP10 or am I going to see the same net benefit using two koralias working in tandem with the hydor pump controller, just loose a little space in the tank at half the cost?

I will add that the tank this is in is a 50G 36"x18"x18" tank, housing mostly lps and softies with a couple sps. Thanks in advance for any advice/input you have!