daily water changes

[steve fedyk]

I'm looking for a pump that can do daily water changes. I wont to change about 1-3 gallons a day on my 120g, total olume is about 150g.

The idea is to mix up a full bucket of salt and sweeten the water, by upping the Ca, Mg and KH levels of the water. I'm going to start with just the salt mix and add from there, to get to the the requarimints of my tank. The tub of salt water will be in the basment and the tank is on ther second floor.

I saw a double head pump on one of the reef sites but can't find it. Two heads with one veriable speed motor, and it could be ajusted from 3g to 60g a day. With a timer I could get it down to 1g a day.

Any other ideas would be great.

[fkshiu]

I think you can use a Litermeter for that purpose.