12-11-2013, 12:38 AM
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I always suggest doing weekly water changes of 5%-30% depending on tanks size, bioload from fish-Amount of waste-and water test readings. Also, during the firsh 6 months you should take regular and bottom level water samples for testing. Use a piece of airline like a siphon to pull from the bottom. Also, test your tap water and write down the readings. Tap water can change from time to time and it is better to check immediately if a problem occurs. To get rid of the tannis, just use carbon. I suggest always having carbon and a cheap corner filter handy just in case.
You did not say what type of filter you are using. I always have a sponge filter in each tank regardless of other filtration devices. Besides filtering the water biologically, the sponge provides a breeding ground for small organisms that keep things in a natural balance. I use a sponge rated for 80gal in all of my tanks 30gal and under.