Find a local vet that specializes in exotics, or, if possible, fish.
Print out a copy of the red bug article from Melev's Reef, it's a good one.
Bring it with you and explain what you need it for. You may not be able to get past the secretaries; if that's the case, ask them to pass the article along to the doc with your request, and tell them you'll call back tomorrow.
Call back tomorrow.
Worked for me. Now the front desk knows to grab a tab when I come in.