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Aquarium TYPES

  • A school of small, colorful fish swimming in an aquarium with dark background.

    Freshwater Aquariums

    Big Fish Aquarium provides a wide array of healthy freshwater tropical fish, including angelfish, plecos, cichlids, livebearers, and tetras. These species are ideal for both novice and experienced aquarists.

  • Colorful underwater scene featuring orange and purple sea anemones with a few fish swimming nearby, including a striped fish and a blue fish.

    Saltwater Aquariums

    For those interested in saltwater setups, Big Fish Aquarium offers an extensive range of marine life and essential products to create a thriving marine environment.

Underwater view of lush aquatic plants with green and reddish-purple leaves, some with long stems, in a vibrant aquarium.

Incorporating live plants into your aquarium not only enhances its aesthetic appeal but also contributes to a balanced ecosystem. Plants generate oxygen, absorb CO₂, and help stabilize pH levels, promoting a healthier environment for your fish.

Freshwater Aquariums: Live Aquatic Plants

A small red fish swimming among green aquatic plants.

Freshwater aquariums create vibrant environments, especially with tropical fish known for their vivid colors. A minimum tank size of 20 gallons is essential for ample swimming space and stable conditions. Proper filtration and temperature, ideally 74°F to 78°F

Freshwater Aquariums: Tropical Fish

Bright green and pink stony coral with fluorescent tips on a grid system underwater

Saltwater Aquariums: Water Chemistry Essentials

Maintaining optimal water chemistry is crucial for saltwater aquariums. Key parameters include:​

  • Salinity: Ideal specific gravity ranges from 1.020 to 1.025.

  • pH Level: Should be maintained between 7.8 and 8.5.

  • Ammonia and Nitrite: Both should be at 0 ppm to prevent toxicity.

  • Nitrate: Keep below 20 ppm to avoid algae overgrowth.

  • Calcium and Alkalinity: Essential for coral growth; maintain calcium between 400–450 mg/L and alkalinity between 8–12 dKH.

  • Magnesium: Crucial for overall water chemistry; ideal levels are 1250–1350 mg/L.​

Regular testing and adjustments using appropriate additives ensure a stable and healthy marine environment.

Underwater scene with a black fish swimming near a large, colorful coral and other marine life.

Saltwater Test Kits: Accurate testing kits are vital for monitoring water parameters and ensuring the well-being of your marine life.

  • Water Changes: Regularly changing 10–20% of the water every 1–2 weeks helps remove toxins and replenish essential minerals.

  • Additives: Utilize water conditioners and trace minerals to enhance water quality and support the health of your aquatic inhabitants.​

Saltwater Aquariums: Essential Products and Services

Expert Stability Support

Stability is the foundation of every 'Success Path,' but keeping your Alkalinity and pH$dialed in shouldn't feel like a second job. We’ve spent 25 years mastering the science behind Chicago’s water chemistry so you don't have to. If you’re ready to stop guessing and offload the technical testing to the specialists at BFA, we’re ready to step in.