MAY MONDAYS

Every Monday in May, get 15% off in-store saltwater fish, freshwater fish, corals, and plants.
Prefer to shop online? Enjoy 20% off all livestock, auto-applied at checkout. Mondays only—don’t miss out!

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Top Aquarium Brands In Stock – Shop Local in Elmwood Park!

We carry the best in aquarium supplies—San Francisco Bay Brand, Kolar Brands, Ocean Nutrition, UDM, Fritz, and more. Stop by Big Fish Aquarium in Elmwood Park, just minutes from Oak Park, Glenview, Morton Grove, and Skokie, for trusted products and expert help!

Brands We Carry
WYSIWYG Corals, Aquarium Supplies & Frozen Foods – Free Shipping on Orders $150+

Shop our hand-picked, WYSIWYG coral selection—plus dry goods, frozen foods, and top-quality aquarium supplies. Spend $150 and shipping is FREE! Fast, easy delivery straight to your door. Get exactly what you see—healthy, vibrant, and reef-ready.

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Saltwater Fish In Stock – Visit Our Store Today!

Explore our vibrant selection of saltwater fish, available now at Big Fish Aquarium in Chicago, IL. Healthy, colorful, and ready for your reef—stop by and shop in person!

New in Stock
Professional Aquarium Services – Serving Elmwood Park, Skokie, Morton Grove, Glenview & Beyond!

From custom tank installations to routine maintenance and expert consultations, Big Fish Aquarium offers full-service aquarium support. Based in Elmwood Park, we proudly serve hobbyists across Skokie, Morton Grove, Glenview, Oak Park, and surrounding Chicagoland areas. Let our experts help you build and maintain the tank of your dreams!

Our Services

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STAFF PICKS

Discover Big Fish Aquarium’s top staff picks! Our WYSIWYG collection features vibrant freshwater fish, unique marine species, and healthy invertebrates—hand-selected for color, health, and compatibility. Shop expert-curated livestock to elevate your tank today.