Hi fellow hobbyists, can anyone help with my leather toadstool. It always looks like this with polyps hardly out. When I bought 6 months ago it was completely out full polyp extension etc. Done it’s monthly retract and shed a few times then one time retracted, shed then never came bk out and has been the same for about 3 months. Nothing has changed and been pretty stable. I have checked PIR and varied flow to see if that helps. Anyone else with any ideas? Tank parameters 1.025, 25 temp, 0.001 nh3, 0.015 phos, 8.22ph, calcium 360ppm, magnesium 1300, kh 9, nitrate less than 5