Need pump remmendations

[kingfish]

I would like external pump recommendations? I am look for the best value. Please provide recommendations based on experience along with a rationale for selecting the suggested pump.

 

Tank size: 250 gallon tank

Head height: 5 to 6 ft

GPH range= 2500gph +/- 500 gph. (Internal pumps will be used to circulate water in tank as well)

 

Priority:

1. Cost

2. Efficency

2. Flow rate

3. Reliability