Are you feeding anything more "solid" than brine? You might try feeding chunks of fresh shrimp or other seafood. I just gently lay the shrimp on our open brain- you should notice the presence of several "mouths". The shrimp is then engulfed (slowly) and devoured. I usually feed it once or...
I added some new mushrooms last weekend. After about a two hour acclimation, I added them to my tank. Within several hours they had all turned to slime and dissolved away. I just more or less wrote it off on poor acclimation/shipping. However, the last couple of days my hammer hasn't...