My green toadstool leathers have been closed for 8 months. The cabbage leather and long tentacle leather are doing fine, just slow growth on the cabbage. I've tried dipping and I dose iodide every few weeks. My nitrates are around 3, phosphates 1. I run carbon and gfo. I took out gfo for a few months and nothing changed. I'm planning on doing an icp test soon. I'm just looking for any other ideas. I may just give them away to someone and see what happens if I can't get them looking better soon