Tiny Ghost Shrimps

This afternoon at Punggol Beach, B1 and I got lucky and caught ghost shrimps.  I also managed to catch them once.  After that they disappeared and it was hard to look for them again.  B3 was fascinate by the shrimp because he only saw it after a while.  We also brought back an active crab.  It swim about well.  I hope it stay alive for long time.  The hermit crab is doing well.  My goby fish is still around.  The only thing is most of the pistol shrimps seems to have disappeared although I still hear the popping sounds.