01-25-2007, 04:47 PM
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Yes, there are other ways. The first and most effective way is to get into a larger tank. When ammonia and nitrite are at zero and nitrates are increasing, that is telling you the biological cycle can handle the waste load but only to a point. If you need to buy yourself a little bit more time, start doing 2 water changes/wk instead of one. As the fish grow and waste levels increase, the number of water changes you will need to do each week will also increase. Be sure to gravel vac at least once/month, and go easy on the food. No fish (other than fry) needs to eat every single day. Their systems need time to digest food, and anything they don't eat right away will only serve to increase waste levels in the tank. Try cutting the amount of food in half, and moving to every other day instead of every day.
Please remember, this is a "temporary fix". This will buy you a little bit of time, but not a whole lot. The fish will stay in a healthy environment, so will grow rapidly, and eventually even doing water changes every day, you won't be able to keep up with waste levels and the fish, larger than they are now, will begin to have issues with each other due to lack of territory and space to move around properly.
If you'd like to post some pics of your plecos here, we can help you to determine the correct species of each. It's always important to know what species of fish you are keeping. You can't take care of something properly if you don't even know what it is.