Review on 🐠 ATM Aquarium Products: Freshwater Colony Nitrifying Bacteria for Effective Aquarium Maintenance by Nicole Walker

I keep Goldie and after one treatment the biofilter fell off. I changed the water daily to lower the ammonia levels, but it didn't seem to help much. This product worked great. Ammonia has dropped from 1ppm to almost zero with reduced feeding for now and no water changes for 4 days as instructed. Five stars! PS: small fish like guppies (I keep them in a separate tank from Goldies) absorb this substance as soon as it is added when it swims in the water. I highly recommend ATM Colony.