cozy clownfish (now known as aquatic obsession) just reopened in manassas as well, its across the street from eastern automotive. they just opened so they aren't at their full potential yet, but the BIG thing that aquatic obsession has over BRK is the wamas discount. something along the lines of 15% off inverts, 20% fish, and some other amount off corals (dont quote me)
well worth a visit imo