Had this elegance for a while, it has been happy until a month ago where it has been slowly declining. Went on a trip and came back to aptasia bloom, red planaria which was already there, and the rocks covered in bubble algae. I had some bubble algae before leaving but it got worse. I have another larger elegance that is happy and open, as usual. One is Aussie the other is Indonesian, i dont know which is which. I also have two gonis that were surviving before the trip, but are now closed because of the red planaria and aptasia. I will remove that, but I have had issues like this in the past when I didn’t have pests. My baby elegance has proceeded to polyp bail-out but the polyp itself is fine, I will check parameters and try to fix, and change carbon, and remove pests.. but this has happened before when everything is perfect. Is it a bacterial issue, or calcium or something else? My two torches are really happy, so i’m stumped. Also just noticed a tiny bit of brown what I hope isnt bjd on the affected elegance. Gonis have none, but I assume its nutrients and pests causing issues since the algae bloom happened. Heres some pics, please do ask any questions.
This is what I think may be some BJD 


