Sorry but Ive had 2 clowns die from brooklynella and I would say thats definitely it. The weird thing is the once the fish looked at the stage yours are (in the above pic), they died a couple of hours later.
If its parasitic, I suggest dipping them in formalin-5 or something like that for a few times a day. Gotta act fast with brook. Whats scary is that if you got yours directly from ORA, that means the rest have it too, or are exposed to contaminated water.
EDIT: Pooping long white string? Thats odd for brook...it actually might be parasitic then. Definitely a weird bug theyve got
If its parasitic, I suggest dipping them in formalin-5 or something like that for a few times a day. Gotta act fast with brook. Whats scary is that if you got yours directly from ORA, that means the rest have it too, or are exposed to contaminated water.
EDIT: Pooping long white string? Thats odd for brook...it actually might be parasitic then. Definitely a weird bug theyve got