Phosguard and leather corals

[DW79]

I used the recomended amount and rinsed it well and pulled it out after 4 days. My toadstool leather closed up the second or third day. After 2 weeks of it staying closed I gave it a light brushing with a toothbrush to see if it was still firm or had something on it that it didn't like. It shed the next day and openned back up. I don't know if it was just shedding, if it was the phosgaurd or both, but it seems to be fine now.