Upgraded all 3 to 3gallon pots. Cut the bottoms off the coir pots and just buried them. They are already breaking down. I am fertilizing with FoxFarms Grow and Plant Food. I put a base layer of clay pebbles (soaked in a 11-0-0 solution for 24+ hrs) at the bottom of the 3gallon pots, I put the ones that DID sink at the base of the hole where the smaller pots fit into, put a handful of water or two then added the coir pots. 2 of my girls are going good, however before i even replanted the 3rd seems to have stopped growing all together. I switched to just 6.8ph water and a few days decided to replant into new pot today, see how she goes.