always dechlorinate the water before it goes into the tank... chlorine kills your friendly bacteria... a large water change isnt that much of a problem just dont make a habit of it, ammonia turns to nitrates which in turn turns to less harmfull nitrates.. that is what you need to achieve.As long as the nitrates are low initially you can keep nitrates under control by filter media, not a lover of adding chemicals to fix problems, try to fix it naturally
your levels are not high by any means, but tap water nitrites and ammonia should be 0 anyhow, you need to be able to achieve these levels constantly without it climbing, i always do fishless cycling with a bottle of household ammonia, the benefits of such pays for itself long term with happy healthy fish.
be patient and dont panic with what you have, just try to control what you have, if you have anyone who has a healthy tank running ask for their water from their filter to pour through your filters so all the crap bonds to your filters, but do it within a couple hours of taking it from theirs, it will give your filters a massive boost.
1 Albino Red Oscar
1 Red Tail Black Shark
1 Bristlenose Plec
1 Mega Clown Plec
Last edited by weedkiller; 11-21-2012 at 02:10 AM.