D.C. Area pet stores?

[bound_for_obx]

I might be heading up to Alexandria this weekend and I want to stop in at some local pet stores. I'll be looking for Southdown Sand, a hydrometer and a bucket of I.O. among other things. Can anyone recommend a place that I can pick this stuff up cheaply? (I'm coming from Harrisonburg up 81 and down 66)

 

[RogerMcAllen]

Have you tried the regional forums yet?

 

[bound_for_obx]

I originally looked in the regional forums. Alas... non in the DC area.