pump

Hey, So I have 2 old Tunze Turbelle stream controllable pumps 6100.10, with the Tunze Multicontroller 7095. The pucks for the pumps are 6200.800A and 7410.602A, The first puck puts out 80W the second 60W but I've read that it doesn't matter and the pumps have the same power. I am curently...

How often do you see used VorTechs available? I would like to use MP10's on both my 5.5 gallon and the 65 gallon, so I would be looking for three of them total.. But I know I wouldn't be able to afford to buy them new.. Even used I'll have to do one at a time. My question is how often do you see...