Plumbing

I've mentioned before that I don't think the flow in my tank is good enough. It's a 120, and it has 2 koralia evo 1050s and a maxijet with the propeller mod. I don't count my return since it's not very strong. I'm going to have some funds available from selling at a frag swap next month, hopefully $200-300. If it were your tank, what would you do? Obviously scrapping them for Vortechs isn't feasible. Would you start over, add more pumps, put in a closed loop, or something else? I could easily ...

I don't think I'm getting enough flow, but my pumps gph seems to be high enough. What would you do if you had a 90 gallon tank with 2 Koralia Evo 1050 powerheads and a return pump? The ph's are positioned in the back corners both facing the middle of the front pane of glass, and the return is on the back right side pointed straight left. Would you redirect pumps? Add pumps? Keep in mind budget is a concern here. I can't just go out and buy vortech pumps or anything like that.