03-02-2008, 04:55 PM
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Water changes in a cycling tank.
I've just set up my first 29 gal freshwater in the last few weeks (since feb 18) and I have a question about water changes.
I think its just about cycled, 0.25 was my last test.
I have a large piece of mopani wood which is leaking tannins like crazy. From what I have read on the forum, water changes and carbon seem to be the suggested course. I have added an extra sheet of carbon filter foam to my penguin 200 but it doesn't seem to help much, the water just keeps getting darker. I know its not harmful but it gets real dark. I'm chaging about 25% once a week.
How often can I replace some of the water without messing up the cycling of the tank and how much can I change.
This is my first post to the forum and I would appreciate any help you can offer.
2 golden gourami
3 black skirt tetras
6 sunrise platys
silk and plastic plants
mopani wood and desert stone