McMerwe is an online and physical aquatic pet shop and aquarium store based in Cape Town, with a Brackenfell store and nationwide delivery across South Africa. The business serves aquarium enthusiasts with quality livestock, equipment and supplies, alongside support from experienced aquarists. Its live offerings include freshwater fish, shrimp, snails and other invertebrates, as well as aquatic plants for a range of aquarium styles. Livestock and plants are shipped Monday through Wednesday, and the store provides live-arrival support; fish are quarantined for seven days before being made available for purchase.

McMerwe’s extensive range covers aquariums and cabinets, filters, pumps, lighting, heating, CO2 systems, substrates, aquascaping materials and decorations. Customers can also find food for fish and other aquatic animals, water treatments, medications, test kits, reverse-osmosis equipment, maintenance tools and breeding supplies. The store stocks products from established aquarium brands and caters to freshwater, marine and reef, pond, terrarium and paludarium setups.