try to make a fertilizer for Calcium
I just used the 50 grams of CaSO4 0.5 H2O today to make a fertilizer for my aquarium. because I needed 10 ppm of Ca, I put the entire amount to 250 ml of RO water. total disaster. I ended up with 1L water by adding RO water and I still have a sample like milk. If I left the sample sit for a while the bottom become solid. What is the solubility of this? how much can I add?