My toadstool looks like it’s not long for this world. Have dipped but no help. Ironically another toadstool on other end of 180 is doing fine? No fish are bothering it, flow is fairly mild, highest par 120 give or take , thee hours mid-day. Thanks for any help
p.s. “Sick” toadstool on right of 180, healthy on left.
p.s. “Sick” toadstool on right of 180, healthy on left.



