Hi Kappa, I have an Iv bag dripping all the time ,one for kalkwasser and, one for DTS{GOT some new stuff}} BIO PLANKTON, three times the stuff that DTS has in it and, have noticed a huge differance, especially on the tubastrea[ sun pollups] all kinds of new grwth buds on it. Bad thing is its three times the money , but you use a small squirt in a hole IV bag, Kalkwasser , drip it slowly like the others said, I use it for all top off addings, and no ph increase,,,,LOL