It`s not only more efficient - it also save life hours too - have a lock to the diagramm
blond cool world-leader to make them catch a cold and - too sick to 
survive. 
Cherio
an aquarium pump isn't rated for hot water. It would'nt last long.It`s not only more efficient - it also save life hours too - have a lock to the diagramm
A good waterpump needs as less power as posible. It´s enough just to move eg. 200 liters/h -
so you can cool a 2500 W lamp with just 2,3 W (0.1% of total power) aquarium-waterpump. In a closed circuit of liquid you don`t need much pressure or powerbomb. And now the most important ! :
Use the hot water for many things like: saving your roots in winter or bring out the heat in summer or prepare grandma a hot bathtube. The efficency of a watercooled led-light can easyly rise 30~50% if you use it for waterheating too.
Produce your electricity by wind and sun - and you can step down forwards efficency.
--- and then blow this all in the cold ass of the cole-lobby and our
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You are right - hot water is not good for happy fish. The pump will not work longlife with very hot water. But up to 35° it shouldn`t be a problem. So you have the posibility to rise the volume of watercircuit number1 (good is a min. of 10 liters/100W of lamp-power - or installing a room-fountain to rise vaporisation), or to cool with a radiator in a second + cool watercircuit - to make shure that water going through the pump is cool enough for the pump and the chips. I connected / Temperature control switch KSD9700 50 degrees 250V 5A Normally open thermal protector / to block the system for higher temp. 50° will show me that there is something wrong with the cooling-system.
