[dinor2]

If you have livestock in your tank and have the ammonia still, I would do small 5-10% water changes every day to every other day which will prolong the cycle, but, will help keep the critters alive and lower the ammonia which is the most toxic chemical in our tanks. After you see ammonia at zero, slow up on the water changes, I would go 10% every week, and test that water daily until you have a cycled tank. My tank's been running for 7 months and I just figured out how many gallons to take out at my weekly water changes so it'll be a try as you go so I wouldn't add anything else to your tank for a while.

But when I added the last batch of my lr, my tank cycled too but I only had two fish and cuc in there and I was fortunate to not even see the ammonia spike, just nitrites then nitrates.

As for adding chemicals to your tank, I personally would not do that but that's just mho. In mho, water changes, with RO/DI water! usually can solve a lot of issues with water quality.

Let us know how it's going!