Yeah, I'm using canna bagged Coco. Used to use botanicare bricks. I am still hand watering, but plan to automate soon. Growing under sunsystem dual 315w in veg (but only using one bulb at the moment) ro water, no c02 supplementing in veg. The last few months I've had a break from running the flower room, so I've been trying to improve my veg mix. I don't pretreat the Coco, although I have in the past. I could write a book telling you about all the things I've tried and what my conclusions are, but the biggest thing I am perplexed about is why I seem to need more calcium than most. Before I started messing with calimagic, I often would use a ratio of 3g jacks to 3.25g calnit for the first few weeks. Now that I use bagged canna, I seem to do better with equal parts jacks and cal by weight, or slightly less cal. My normal pH is 5.8. makes sense to raise it some for uptake. I am guessing once I automate watering I will have fewer frustrations. Once my plants start drinking faster, I have less issues. I'm currently running yaraliva calcium. Thanks for the tip about calprime. I'll check it out. I've been enjoying your posts, and they caught my eye because we have many similarities. Thanks again, I'll keep you informed.