My mind is spinning with all the information.
I’m stuck in a rabbit hole. I’m using a active substrate Fluval stratum that buffers to 6.8 atm. I’m told by some they need inert which doesn’t alter PH. And I’ve heard some say there shrimp are doing good in FS. My shrimp seam to be doing good. There’s 5 3 girls and 2 boys. 2 of my girls are saddled and one is about to have babies. I’m not seeing any molting problems. They have been in this tank for 2 months. The soil is at least 4 months old. I put them in after cycling was complete a little over a month. I’m using cuttlebone bone, shrimp a