this one hasent gone missing YET. i havbe no ideas as i have done nothing different with this one. i also had a huge excese of algae. now the algae is almost gone and im getting alittle worried.

one problem could be acclimation. seahares are molluscs which means they're VERY sensitive to salinity changes. The drip acclimation process is the best for them.

here's how:

1. put your new animal and the water from the bag in a clean container (tupperware will do but something insulated is best)
2. set up a slow drip (2 drops per second) for an hour
   remove half of the water from the container and increase the flow rate to a slow trickle
3. remove half the water a half an hour later and increase it to a fast trickle
4. test the salinity. if it's the same in the container and your tank, add the animal to your aquarium. if not, continue acclimating at the current trickle rate until it is.

this acclimation process is good for fish too but add a little Prime or some other ammonia neutralizing chemical so that the fish doesn't poop itself to death during the process. (ammonia chemicals are not nesessary for inverts)

also keep on top of your evaporation. dumping in lots of top off water at once is hard on snails n such because of the sudden salinity change and may be the cause of a "snail graveyard"

if you're running out of food for your sea hare you can feed it nori

I picked up a seahare and a cats eye snail on Sunday. I have seen the seahare cruising around occasionally, but otoh, I haven't seen the snail since Sunday night, and he is rather large to completely bury himself in the sand.

The acclimation was fine....the sea hare has just vanished....liked someone reached it and removed it......one day....happy little dude pigging out on algae.....next day......gone.....my god...I think someone broke in and stole my sea hare....

It was meeeee!!!!!!

i found a Predator-esque pile of hermit shells outside this little nook in one piece of my foundation rock...turned out it was a gorilla crab. i caught one. then a week later a smaller one had taken its place. i couldnt catch this one, so i blinded it with a lazer pointer. now when i do see it it's wandering around like Mr. Magoo.

would a gorilla crab eat a sea hare?

Sorry to bump a vacated thread...but mine did the exact same thing! I did the acclimation during the early evening...plopped it into it's new home...watched him for hours...then never seen him again :cry: I only have 50lbs of rock, so maybe I just re-landsdcape and see where he hides. :biggrin: