welcome buddy before adding anymore fish let your tank stabilize its too close to a cycles end too add anymore bio load, your system has to even itsself out and will take a few more weeks again.maybe consider getting some cleaners like snails crabs or shrimp possibly some beginners corals like mushrooms its very important to let your system work its magic without us interfering for the first few months,monitor your water keep an eye on your livestock you have and be patient it will cost you wayyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy less in the long run