MiamiFishy said:
I run todays test on the 29 g, and im not making any sense of these...have no idea what its going on...
pH: 6.0 - 6.2
KH: 0.0
GH: 75 ( soft )
Nitrite: 0.0
Nitrate: 40 - 80
Ammonia: 2.5 ppm
OK. You have no fish in there which is good. Is that 40-80ppm after using the 1:5 dilution method? If so I'd leave it alone for now, but you'll need 1 or 2 really large (like 85-90%) PWC when your cycle finishes. I see 3 problems right now and they are probably all related:
1. Your water is EXTREMELY soft. Is this just normal tap water or do you have a softener or other treatment system? As it is now, I would be a little worried about having such soft water. Because...
2. Your pH is VERY low, so low in fact that your bacteria will slow down or stop multiplying. I had originally thought that it was all the chemicals added to the tank (and it still might be), but now I wonder if your tap water is naturally that low. Please take a cup of water and sit it out overnight and test the pH the next day and report back. If the pH is close to 7.0, then there is still something in the water that is lowering it. If so this is easy to fix.
3. Judging from your numbers you either (cringe) have no ammonia to nitrIte converting bacteria present (which unless killed there should be some after a couple weeks of cycling), they have gone dormant due to the low pH, or due to the low pH you have an equal amount of ammonia to nitrIte and nitrIte to nitrAte bacteria present so like in a cycled tank the ammonia goes directly to nitrAte. I find this last option tough to believe, but I'll have to look up the bacteria's properties to see if this low pH can cause this (ammonia to nitrIte multiply quicker than nitrIte to nitrAte, AND they have a large headstart since there is very little if any nitrIte in the tank when you start a fishless cycle).
EDIT: Just did some digging around and it appears my last guess might have some truth behind it. The ammonia to nitrIte bacteria prefer a pH close to 8.0, while the nitrIte to nitrAte bacteria prefer a pH closer to 7.2. Having the pH close to 6 is so far away from the ammonia to nitrIte's range, that it may in fact have stunted the growth rate so that you have an equal amount of each bacteria.
Here's what I'd do:
-test tap water after its been set out overnight. If the pH is close to 7.0 I'd do a large PWC to bring the pH back up (and disregard what I'm about to type).
If the pH is as low as your tank, buffer the tank up with baking soda. This will increase your pH, and KH of the water. Since you are doing a fishless cycle you don't need to slowly bring up the KH in the tank. I'd add 1/2 teaspoon of baking soda to a cup of tank water, stir it in until dissolved, and then add to the tank (pour it away from the filter so it doesn't shock the bacteria all at once). Wait an hour or two with the filters on high (to get evenly mixed), and measure BOTH your KH and your pH.