It turned out it never... One morning/afternoon i came down from upstaires and sae its exo-skelenton on the sandbed... but all as ONE, so i thorght "nooooooooooooooo"... ive failed my tank and ive not even started properly yet lol! Plus i hadnt seen him out for agessssssssssss (hybenating i guess - my snake did this too). Then in the evening i noticed a blockade within the rocks which is usually CLEAR and you can see through to the other side, i thorght hmm strange.. so i prodded around in the tank with my pastic thing i use to move stuff lol... then i looked back and the hole was clear... to my excitement it just had to be him... him being "sebastian" then i remember his first shed, only then he never shedded as one, the first occasion i saw bits off him scattered about and around (at this point too i thorght something had got him - when i first got my live rock - and new hardly anything about SW truth be told). Now i can say i have seen him sinse, tody infact... he was on the sand bed but close to the LR moving around its base... BUT i noticed one thing... HE HAS NO CLAWS?????????? how comes? will they grow back? was this to do with him shedding? Its nt yet been a day sinse hes come out of hiding.. maybe hes hungary and has to come out before his grown his bits back..?? maybe?? lol.. helppp! answers answers.. pleaseeee.... thank you!!!!!!!!!!!