What pump do i need? *home made hydroponic must read!*

Im using 70 liter plastic boxes im going to cut two square holes in each box,then place 2 3.5inch net pots in,but what next? What pump do i need? How will this work? Pleeeaase help..

the 160gph one. dont settle for less.

I purchased the cheapest one and it worked for a while. but right after i expanded and got a bigger reservoir (3gallon to 15gallon) the distance between the pump and plants grew larger. The small pump wasnt able to push the water that far and up. So now I use it as a circulation pump


the pump was for my drip irrigation system i built.

So i ask for a 160gph were? And how much?

Should be around 40-50 dollars. Check on ebay or google if your local stores dont carry them.