The store is now called Fishaholics. It is somewhat small, but does carry some ADA products. They have items that other stores don't have, but it really is a hole in the wall. It is surprising that for such a small store, they don't seem to fully utilize their space; many tanks are empty and not a lot of hard goods.
However, they do carry rimless tanks, aquasoil, seiryu stone, shrimp, and things for planted tanks.
1207 S Jackson St
(between S 12th Ave & S Boren Ave)
Seattle, WA 98144
Neighborhood: International District