TDS Up is specially formulated to increase the TDS of shrimp tanks without raising GH. It is slightly acidic which makes it suitable for shrimp like Taiwan bees, Crystal Reds, Pintos, PRL’s, etc. Its a very useful tool that can be used with any remineralizer.
In a bucket of RO water used during water changes, add your remineralizer until the TDS is 80. Then add TDS Up to raise the TDS to 100-120 so that you can gently raise TDS without raising GH.