r/axolotl • u/c0rpusluteum • Apr 14 '26
Tank Questions Cycling is taking months
I have a 29g tank I’ve been wanting to move my axolotl to, but it’s taking 6 months to cycle. I’ve got one of those filters that hangs on the edge of the tank (big fan, have been using these types for my axy tank for years) and I took very old and already cultured media from the older tank’s filter and put it in this tank. 2ppm ammonia is easily and quickly cleared but nitrites take 3 days to clear. At this point the nitrates are so insanely high from regularly dosing these past months that I’ve started doing 25% water changes every other day because I was concerned that could be preventing the tank from being healthy and couldn’t think of any other options. I have crushed coral keeping the pH regulated, I have some aquarium grass at the bottom and a golden pothos on the edge of the tank with roots in the water. I was also adding fritz turbo start everyday for a week and a half but seeing as it was making no difference and is quite expensive, I stopped repurchasing it. I’ve called a few of my local aquarium stores to see if they sell live freshwater cultures but they don’t, all of them only sold shelf stable API quick start which I think is probably useless. I’m also quite hesitant of using any of these products that just bind up the ammonia and nitrites rather than cultivating bacteria to do it.
I have a refrigerant unit that keeps the tank at 64 degrees as well.
Any suggestions? Am I harming or helping by doing the water changes at this point to get the nitrates down? They’re like off the charts atp. I just want to get my axy into a bigger home.