Powerhead Recommendations?

[GoldenRoses]

Good afternoon everyone,

I'm seeking advice regarding powerhead purchases. My 75 gallon goldfish tank currently has an aquatop CF300, which I believe does about 200-300gph of filtration. The biofiltration is excellent, however I am not satisfied with its output flow. The water seems quite stagnant, with lots of debris building up. I'm sure the goldfish would appreciate more water movement, and it would help keep the tank looking nicer. So, I'm looking to invest in a powerhead.

Unfortunately, I am not mechanically inclined whatsoever. Finding a good powerhead is proving to be quite challenging to me. I'm on a limited budget, but I'm hoping to find something to work alongside the filter and get the gph up to at least 750.

Here are some choices I was looking at: http/www.amazon.com/gp/aw/d/B004IMPOIO?cache=95a78483417fcc0d25a43f077efb8614&pi=AC_SX110_SY165_QL70&qid=1412607261&sr=8-4#ref=mp_s_a_1_4

http/www.amazon.com/gp/aw/d/B004IMPOJ8?cache=95a78483417fcc0d25a43f077efb8614&pi=AC_SX110_SY165_QL70&qid=1412616493&sr=8-8#ref=mp_s_a_1_8


http/www.amazon.com/gp/aw/d/B0036S70ZG?cache=95a78483417fcc0d25a43f077efb8614&pi=SX200_QL40&qid=1412607261&sr=8-2#ref=mp_s_a_1_2

Does anyone have experience with any of these powerheads? How would they do in a singletailed goldfish tank? What about with live plants? How should I position the powerhead to give the most aeration?

Any tips will be greatly appreciated, as I have no knowledge when it comes to this kind of stuff.

Thanks!