01-21-2014, 01:52 PM
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Hey Debbie, looks like you've gotten some good input here. . . I just stumbled onto this thread and thought I'd see how things are progressing for you?
My guess is that your tank isn't fully cycled yet based on the numbers that you've posted here.
It looks like it was close before that last water change, though. . .
Your pH should be fine.
DO NOT change your filter - there will be beneficial bacteria on there that you don't want to get rid of!
I'd hold off on adding fish just yet, if possible. . . just to be safe and sure than sorry!
My question is WHY have your numbers fallen from 20ppm of nitrate to zero so quickly. . .
To help us figure this out, some additional questions for you:
How much water did you change, and did you use a dechlorinator?
Have you been adding fish food since your last post, and what are the numbers now?
Can you tell us if your plant is a stem plant, as opposed to a rooted plant or a rhizome plant? (or take a picture!)
It is possible to have a cycled tank that shows no nitrates after the initial spike - it doesn't happen very often, but the possibility is out there.
I'd personally add a largish dose of fish food, and track the numbers daily or even twice a day to see what happens with them. If you see them fall quickly back to zero, than your tank is cycled. If not, you may have more work to do before you're ready to add stock.
... hope this helps?
Last edited by Chesh; 01-21-2014 at 02:08 PM..