CCA Shop in Grantville, San Diego is the retail storefront for California Custom Aquariums at 4580 Alvarado Canyon Rd, Suite A, 92120, stocking aquarium fish, tanks, filtration hardware, and maintenance supplies. The shop operates under the same ownership as the custom-aquarium design and installation division, giving retail customers direct access to the engineering team that builds large-format residential and commercial systems. Tank inventory includes standard glass rectangles, rimless frameless designs, and peninsula configurations, with sump-and-overflow packages pre-plumbed for saltwater, freshwater, and reef applications. Reef-grade lighting, protein skimmers, return pumps, wavemakers, and RO/DI water-filtration units line the equipment wall, and the shop sources from brands that include Ecotech Marine, Kessil, Neptune Systems, and Red Sea. Custom aquarium installations in homes and offices require dedicated electrical circuits for pumps, heaters, and LED arrays, and the shop refers clients to electrical contractors — SRP Electric Inc. in Grantville handles the 20-amp GFCI branch circuits that reef systems demand. The Alvarado Canyon Rd address sits near the Grantville trolley station, within the same industrial-commercial district that houses the fabrication side of California Custom Aquariums' operation. Maintenance clients on recurring service contracts pick up salt mix, test-reagent refills, and replacement filter media at the shop between scheduled tank-cleaning visits. Large-format aquarium builds — systems above 200 gallons — generate water-supply and drainage requirements that go beyond standard household plumbing, and the shop coordinates those connections with American Plumbing Group in the 92120 ZIP for RO feed lines and sump-drain tie-ins. Owner Lance E. has run the aquarium design and retail operation since at least 2007, with the BBB file opened in 2012 under the California Custom Aquariums name. The shop carries both freshwater and saltwater livestock, including community tropicals, African cichlids, tangs, clownfish, and invertebrates for reef builds.