You are essentially doing a fish in cycle as your tank isn't cycled. You want to keep your ammonia at .25 ppm
. Your nitrites at 0 and never above .25 ppm
. Your nitrates not above 40 ppm
First thing you should do is two 50% water changes back to back asap. Get that ammonia down to .25 ppm
. Remember, for example, if you have .50 ppm
and you do a 50% water change you will then have .25 ppm
Test your water daily to establish a water change schedule. Be prepared to change your water frequently and more of it.
Feed lightly during the cycle process.
Good luck and keep us updated.