I've finally got my new 5' tank up and running. Filled it with about 2/5 old water from doing water changes on my other tanks and about 1/4 of the media has been sitting in the sump of my 4' for a few months, so hopefully that has given it a kick start! I'm not planning on putting any fish in it for at least 3 weeks until I can meet up with someone coming up from Christchurch who is going to bring up the sand I'm using (long story, but its only available from down there). So, is there any point in running the heaters for the next 3 weeks? Will the warmer water help the bacteria establish, or will I be just wasting power?
