Review on 🐠 Blackwater Aquarium Water Conditioner by Brightwell Aquatics - Enhanced with Humic Substances for Planted and Biotope Aquaria by Crystal Keenan

This material seems to really appeal to some fish. My Corydora Julii population has doubled since adding a few drops to my regular water changes. I'm not sure if this is the main reason, but I've never seen them lay eggs (I'm no expert). The swarm of smoldering tetras I have with measles also seem to be brighter and more active. I live in an area where the water is a little hard (rather alkaline) so anything that can help soften it to tropical fish levels will help.