I appreciate the replies guys. Where the OP was having an issue with shrimp not getting enough food and searching the tank for it, mine are not moving around the tank looking for current or food. They just sat there, no fans deployed ever, and got progressively weaker from not trying to feed. There's deffinately enough food in the water column, as the brown one now sits under the filter outflow and fans from time to time.
Thinking I'd gotten a pair that have issues (I never saw them fan in the pet store either) I got another one recently that I knew was healthy. This one was out fanning like crazy last night under the outflow. All 4 fans and was licking them in sequence very quickly. So food isn't the issue, I just have 2 shrimp who refused to try to eat.
My spirulina arrived yesterday so I'm going to try a little spot feeding today. I may take a look for the suggested biozyme, but fear the shipping would take too long.
Last edited by GavSmith; 02-24-2013 at 01:55 PM.