• 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

  • 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

  • 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

What are you searching for?

Explore premium aquarium supplies from leading brands like Fritz, Sicce, Nuaqua, CaribSea, Sera, and Red Sea—all available at in our new online store. Whether you're stocking up on dry goods, frozen foods, or essential aquarium equipment, enjoy fast, hassle-free delivery. Plus, get FREE shipping on orders over $150! Shop now and elevate your reef tank with quality products delivered straight to your door.

C Stylophora Pistillata - Green Stylophora

  • C Stylophora Pistillata, commonly known as the Green Stylophora, is a species of stony coral that is highly valued in the marine aquarium trade. This coral is characterized by its vibrant green coloration and bushy growth form, making it an attractive addition to reef tanks.

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Frozen Discus Formula - Cubes - ON

  • The Frozen Discus Formula in cube form provides a balanced diet specifically designed for discus fish and other tropical species. Each cube is packed with high-quality ingredients, ensuring your aquatic pets receive essential nutrients for optimal health and vibrant coloration.

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Hydros Dual Inline TDS Sensor

  • It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more.

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Chicago Aquarium Services & Design

SUPER SAVINGS!

GREAT DEALS!

UP TO 50% OFF

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Included:

$5 coupon for livestock every month

10 gallons of free RO freshwater with $10 purchase

2-day warranty on fish out of quarantine

Free basic strip test

Included:

$10 Livestock coupon every month 

10 gallons of free RO freshwater with $10 purchase 

7-day guarantee on fish out of QT Free advanced water tests

5% Discount on all purchases

Included:

$20 Livestock coupon every month 

10 gallons of free RO freshwater with $10 purchase 

7-day guarantee on fish out of QT Free advanced water tests

10% Discount on all purchases

AQUARIUM SERVICES

Selecting the perfect tank can feel overwhelming, but don't worry – we're here to assist you! Take advantage of our personalized consultations to discover the ideal aquarium design for your space and lifestyle. With our expert guidance, you'll gain all the knowledge necessary for maintaining a beautiful saltwater aquarium or freshwater aquarium with beautiful live corals, tropical fish, aquarium plants and more. 

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View fullsize 🐠 Radiant Wrasse in Stock Now! 🌈 We’re excited to share that the stunning Radiant Wrasse is now available at Big Fish Aquarium! These saltwater gems are not only a vibrant addition to your tank but also incredible at eating coral parasites l
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View fullsize 🚨 LAST CHANCE! Our E-COMMERCE LAUNCH SALE ends at MIDNIGHT! 🕛 💸 Save big with these codes: ✨ Spend up to $50 ➡️ SAVE 15% — use code ABWJ2NY ✨ Spend up to $200 ➡️ SAVE 20% — use code MJEUMC2 ✨ Spend over $200 ➡️ SAVE 25% — use co
View fullsize Great Ricordia Yuma in stock! Because your fish deserved a pop of color and you deserve some eye candy. 🎨🐠 #ReefLife #ColorfulCorals

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