Hi Charlene, welcome to the forum. We all make mistakes so just learn from everyone in this forum. My opinion now is to make sure u are changing out the water everyday! Thats the only chance you got to keeping it alive in that small tank. You have to change it everyday to reduce the ammonia eventually the nitrite once the cycle begins, followed by nitrates. Once everything is settled, which will take a while, u can do water change weekly or every 3-5 days for a small tank