Hey guys, I've been wanting to raise the pH in one of my tanks that contains Shrimp and a Snail to help them rebuilt shells and prevent shell erosion, but I couldn't find any crushed coral in any size other than a 15 lb bag, and I don't want to use buffer... also I have to keep in mind the Paleatus Cory in the tank (the lfs only had one). I also mix up alkalinity and pH a lot, and I'm certainly no chemist, so forgive me if the question is innacurate. So...what do I do at this point?