I have a seahorse who eats live ghost shrimp (4 a day) - the ghost shrimp are freshwater & I'm hoping to find a saltwater shrimp on which the seahorse can feed as it likes. Any place I can order such things (mysid shrimp, etc)? Also, I'm curious as to whether the seahorses do better when they are in a pair? Thanks, er, Tanks...Kristin