For over a decade, Southside Aquatics has been crafting underwater worlds for hobbyists and enthusiasts across San Antonio — from vibrant freshwater displays to sophisticated marine systems.
Southside Aquatics was born from a simple conviction: that every person who walks through our doors should leave with everything they need to build a thriving aquatic ecosystem — and the confidence to maintain it.
Located on Pleasanton Road in the heart of San Antonio's Southside, we've spent years cultivating relationships with local hobbyists, marine biologists, and aquarium designers. Our showroom houses hundreds of species, from hardy community fish to rare marine invertebrates, alongside premium filtration, lighting, and aquascaping supplies from the world's most respected manufacturers.
From starter kits to custom installations, we stock everything for freshwater, saltwater, and reef aquariums.
Carefully sourced freshwater and marine species, from colorful tetras and cichlids to exotic corals and reef-safe invertebrates.
Glass and acrylic aquariums in every size — from compact desktop displays to large floor-standing systems and custom built-ins.
Premium filter media, canister filters, protein skimmers, heaters, pumps, and automated dosing systems from top brands.
Full-spectrum LED systems, programmable controllers, and smart monitoring tools that replicate natural environments beautifully.
Premium soils, sand, gravel, driftwood, live plants, and hardscape materials to build stunning underwater landscapes.
Dechlorinators, beneficial bacteria, water testing kits, and therapeutic treatments to keep your ecosystem balanced and healthy.
Whether you're setting up your first tank or maintaining a complex reef system, our team provides the knowledge and hands-on service you need.
We work with you to design and build aquarium systems tailored to your space, aesthetic, and experience level.
Professional cycling, water changes, equipment servicing, and ongoing maintenance programs for peace of mind.
Not sure where to start? Our experts help you choose the right species, equipment, and setup for your goals and lifestyle.
Advanced reef keeping requires specialized knowledge. We offer guidance on corals, livestock, and reef tank management.
"Southside Aquatics transformed our living room into an underwater masterpiece. Their team guided us through every step — from choosing the right tank to selecting the perfect fish. We couldn't be happier."
Stop by our San Antonio showroom or give us a call. We'd love to help you create something extraordinary.
2039 Pleasanton Rd
San Antonio, TX 78221-1306
Monday – Saturday: 10:00 AM – 7:00 PM
Sunday: Closed
