Cá Cảnh Lyly is a specialist retailer serving aquarium and ornamental fish enthusiasts, with products for home tanks, planted aquariums, marine setups, and outdoor Koi ponds. Its catalogue includes aquarium fish, fish foods, tanks, pumps, air pumps, filters and filtration media, lighting, heaters, chillers, automatic feeders, and other equipment. Customers can also find aquatic plants and décor, water treatments, fish medicines, shrimp food, and tools for aquarium maintenance and aquascaping.

The range covers supplies for different fish, including Koi, goldfish, bettas, arowana, marine fish, and cichlids. For Koi pond owners, the shop offers pumps, aeration systems, lighting, filters, and accessories, and lists Koi pond construction among its services. The website also shares aquarium and aquatic-plant care knowledge, promotes new products and deals, and invites prospective dealers and collaborators to get in touch.

Cá Cảnh Lyly states that it offers nationwide free shipping on orders of at least VND 2 million, with free delivery within Hanoi for orders above VND 500,000