The greens are a smaller species, in general---the blue/reds or green/reds get quite a bit larger, with commensurately larger appetite. I'm glad you could help him, and by the look of it you've got a fair bit of convolute rockwork, which helps greatly. I've not kept a green, that said. The dragonets are odd fish, and how much they can get by on pellet is still argued (re nutrition), but it likely does help if they can get some. I've had one red-blue take to pellet; I've had a scooter blenny do it with long-term success. The survival of the ORA mandys is always in debate, and again, I'm not sure which sort they are. The best practice is to give them a tank with plenty of backup and to protect that pod supply, because once they get hollow-bellied from lack thereof, they often lose the impulse to hunt and eat, and just sit there, starving to death with live food right in front of them. They're such a 'basic' fish that the prey-response is hardwired, the eating is pretty constant, and if the chemical trigger ceases through starvation, the fish is doomed: this is why many rescues fail: the trigger has quit. Glad you got this little guy in time and have given him a home. The one I had take to pellet was eating Formula One Sinking pellet, but I haven't been able to lay hands on that product for some time.
