Brightwell AquaticsFlorin Delta GH+ - Establishes Mineral Balance in Purified or Soft Water for Freshwater Planted Aquariums, 500-g

Called manufacturer several times for support. Never got a response. Same person on the phones saying she would try to get the support person to call me back. That was several weeks ago.

Love this stuff, allows me to take RO water to the exact point I want it for General Hardness. Helpful to have a milligram measuring scale to get exact measurement you need for the Gh value you are shooting for. Measure it out by the gram/milligram much more exact then trying to to it by volume (with a scoop, etc.). Need to pair this with Kh+ to get your carbonate hardness dialed in. Kalkwasser is the way to go there. Love these products

This is perfect as a gh+ and my Caridina shrimp are thriving.

Great Product for RO water