Update: shrimp gone, algae increase

Pierre the shrimp didn't live long.  One week after arrival he seemed pretty slow, very dirty (like if the filamentous algae in the tank were covering his antennae) and he disappeared that night, never to be seen again.  A water test one week later gave Amonia one point above zero, so I guess he was/is decomposing somewhere....  he never ate any of the aiptasias while he was in the tank.

Somewhat disappointing....

In the meantime algae, filamentous, green sponge-like, green and purple film-like, bubble and hair like have appeared in large quantities.  Decided to add some cleaning crew, for many of the original crew perished in tank fights.  Added 4 hermit crabs and 2 snails.

Have some valonia bubble algae that are starting to worry me.... since almost nothing eats them and they are a plague... seems like only Yellow tangs eat valonia, so I am seriously considering getting one.

Also started using GAC (granulated active carbon) shortly after Pierre disappeared.  Water has been slightly clearer after that, but not super different.

Have new some strange stuff in the tank like this "yellow blog with tentacles" pictured below:

(click to enlarge)

I should post sometime about the multiple "fail-safe and backup" mechanisms of this tank (I work as a country CIO so I'm somewhat paranoid with backups and high-availability mechanisms).  One of them, having two return pumps of which one is fed by a UPS (no-break) worked great when we had a major power outage in Brazil last week.  Kept the tank running for more than 4 hours, and still had battery to keep it running for more.  The UPS is 1400 VA and the pump is ~30W, so....

Our zoanthus colonies seem to be OK, they are opening more now, but they haven't grown and some polyps died, probably during the adaptation phase.  Might be because of too much nutrients in the water (which is why I believe we have so much algae).  I'm considering Vodka dosing, but an trying to resist doing it in these initial tank months.