well, I have an extra tank, but nitrites are off the scale high, and the reaon I haven't cycled the 29 is for the reason of having preggers and I deparately need a tank to put the fry in... Is the bene bacteria completely gone or is there enough that I could put the filter on the new tank to have an "instantly" cycled tank? Also, I am using a speed cycler, called Biozyme, have you heard of it? It says use 1/8 teaspoon per every 25gs for 7 days in a row. I see that the aerobic grid in the 29 has grown a little bacteria, well HAD a little bacteria. The tank has run for 5-6 days, but then I had to tear it down b/c of an outbreak of gill flukes.