Well, did a 90% water change to switch to ro water and got to tds of 220. One day later.. Ammonia is 0.25ppm, nitrite is 0.5ppm and nitrate is about 5ppm. Guess i still have to wait a bit. How often should I be doing water changes now? And how big? 2x week for 20%? Or less often?
Decided to find some ammonia to add to the tank to see how it reacts. Added about 2ml and now the ammonia reading is about 2-4 ppm. Will check tomorrow to see how the bacteria reacts. Nitrites were low after the water change, so should spike tomorrow, then hopefully go down.
Looks like I'm still cycling.. Nitrites are still 0.5ppm range.. Or does it take longer for the nitrites to be absorbed? Ammonia is down to 0.25ppm. I could add a purigen pouch but not sure that it is a good time yet. Maybe i will feed more ammonia in the afternoon..
Keep on cycling for another week if I were you want to be on the safe side. Might as well dump it on in while its just plants and bacteria living in there. However, concentrated ammonia isn't really comparable to a gradual production of waste by fish and shrimp. Just make sure you do another water change before you add livestock to knock the nitrates down.
Woo-hoo... Ammonia and nitrites down to 0 I'm cycled.. Now a water change and time to get some breeding stock. Have a line on some fire reds that I've been looking at, so will go with those. Maybe 10 to start?
I took a while to cycle my newer tanks, found that its not truly cycled until both ammonia and nitrite stay at "0" even after doing a water test (3 hours) after adding ammonia to tank (also had/have indestructible pond snails in there). Took for-ev-er for nitrites to go down to "0" in my larger tank, then I made the mistake of doing too vigorous a cleaning of the canister filter to remove mulm/dead plant matter and bring down nitrates.. went through another mini cycle and had to wait an extra week to put in my fish >.<