Reverting back to the start of my thread on here I mentioned "I'd set a new tank" in actual fact it was new to me but I bought it from a friend who had it running the day I bought it. So the filter had the bacteria in. Sorry I didn't put this. I had my water tested by a fish supplier and was told the levels are safe enough to get at most 5 hardy fish.
Just wanted to leave tank running empty just to be sure. Hopefully this makes better sence now
Day 2 of fish in, and all doing fine. Water test tomorrow.
Will post everyday with updates.