Kapruka's Live Fish sub-section carries ornamental fish for home aquariums, including tropical freshwater fish, goldfish, and guppies, at prices from Rs 440 to Rs 2,200. Fish are popular low-maintenance pets suitable for most home environments. Those wanting live dogs can browse live dogs. Fish food and aquatic feeds are at fish food.

Before buying live fish, the aquarium must be cycled — this establishes the beneficial bacteria needed to process fish waste and maintain water quality. The cycling process takes 2-4 weeks. Fish should be introduced gradually rather than all at once to avoid ammonia spikes. Compatibility between species matters: aggressive fish will harm smaller tank mates. Schooling fish like tetras and danios should be kept in groups of 6 or more. Water temperature, pH, and hardness requirements vary by species — match tank conditions to the fish being kept. Overstocking is the most common beginner mistake. Fish accessories and aquarium supplies are at fish accessories. Fish oil and omega supplements for human use are at fish oil supplements.

Live fish are bought for home aquariums, office displays, and as children's first pets. Kapruka delivers island-wide. Those wanting all live pets in one place can also browse live pets.