I will never fully understand this hobby...

[albert_dao]

Got any Euphyllia?

Sometimes they shed tentacles and other corals catch them and eat them. Then they die.

[Animal-Chin]

Ya I do, it was close to chalice too, maybe the chalice stung it?

[corpusse]

Originally Posted by Animal-Chin

Ya I do, it was close to chalice too, maybe the chalice stung it?

I recently lost a blasto as well with another one just a few inches away. It was indeed a chalice that took it out, but could not reach the other one. While it extends feeder tentacles every night / morning. In the middle of the night they extend way further then any other time.

[Animal-Chin]

Ugh...maybe thats it. Freakin coral....lol

[TimT]

I had a huge Chalice that would send out 4" sweepers. Favia also do this. Chalice also feed using a mucous net. If that gets blown off the chalice it can cause problems for anything it lands on.

I agree with Albert on the Euphyllia tentacles breaking off when they're disturbed, as well the polyp will sometimes bail out. Polyp bail out happens with Pocillopora too.

Anemones are known to spit out mucous bundles.

Any of those things would kill an LPS polyp if it tried to ingest it. If one or two polyps die it can take out the whole colony.

[Dearth]

I recently had a similar thing happen I had a good sized colony of fuzzy green mushrooms with around 30 heads I saw one looking unhealthy no big deal happened before but then in a space of 24 hours I lost almost the entire colony I have 4 heads that survived definitely unhappy but alive nothing else in the tank was affected it is very strange what happens in our tanks sometimes

[Myka]

I think often-times we just don't see what happened. Such as feeder tentacles, mucus balls, etc. It's frustrating.