BIG FISH MONTHLY PROMOTIONS! AMAZING DEALS ON TROPICAL FRESHWATER FISH, AQUARIUM PLANTS, LIVE CORALS, AND MORE TO MAKE YOUR TANK THRIVE!
-
Attention Chicago hobbyists: Dive into unbeatable savings right here in the city before these rotating deals reset!
For a limited time, members score up to 30% off our premium livestock and dry goods.
Sign up for a FREE Silver Membership today to instantly unlock 10% off, or upgrade to Gold (20% off) or Platinum (30% off) to maximize your savings on Chicago's top-rated aquatic inventory.
These high-demand items are moving fast—Shop Premium Livestock Now:
Saltwater Coral & Nems: Score massive member discounts on ultra-vibrant Montipora, Waving Hand, Zoas, Chalice, and Leathers.
Saltwater Fish & Inverts: Vibrant Flame Hawks and active Clarkii Clownfish are ready for your reef.
Freshwater & Plant Deals: Elevate your aquascape with premium Angelfish, Parrots, Goldfish, Oscars, Axolotls, and hardy Anubias plants.
Dry Goods & Essentials: Complete your dream setup today with exclusive deals on ALL Combo Tanks and Life Rock Kits.
Don't Miss Out: These exclusive rotating deals change quickly, and stock is strictly limited. Claim Your Free Membership and Save Today!
-
Subscribe to our email list and get $5 off your first purchase, in-store or online. Stay updated on monthly promos, new arrivals, and member-only perks.
-
Looking to add something new and exciting to your tank? Our Splash Quarantine Fish Sale runs every Wednesday through Friday, giving customers 25% off any fish currently in our quarantine section.
New arrivals come in weekly, so there’s always a fresh mix of species to explore — from hardy freshwater favorites to stunning saltwater showpieces. This is one of the best ways to score healthy, well-acclimated fish at a great value.
Details
25% Off All Quarantine Fish
Wednesday–Friday Only
New livestock added weekly
In-store only
While supplies last
Stop by Big Fish Aquarium and discover your next tank favorite.
-
Membership is the smartest way to keep your maintenance costs down. We keep it simple: the higher the tier, the more you save on the gear and livestock you need to keep your system running right.
FREE Silver Membership – 10% Off
Gold Membership – 20% Off
Platinum Membership – 30% Off (Applies to everything in the shop)
The Details
You can sign up right here online or at the counter in-store. Once you’re a member, your discount is locked in and ready to use. Whether you’re a beginner or running a full reef, this is the best way to ensure your system gets professional-grade equipment at the best price. No fluff, just the facts. Get your account started and get your tank dialed in.
-
Buy 3, Get 1 Free on Select Frozen Fish Food
Stock up and save with this bundle deal.
Choose any 3 eligible frozen food products and get a 4th free — automatically applied at checkout.
Perfect for keeping your fish healthy and your freezer full.
Tip: Bundle frozen food with livestock orders to maximize value on shipping. -
🦀 Cleanup Crew Bundle Promos (Full Month)
Hermit Crab 20-Pack – $42.99
Stock up on reef-safe helpers. With 500+ Clibanarius Tricolor hermits ready to go, this 20-pack is an easy way to keep your tank balanced and thriving.Snail 10-Pack – $44.99
Give your aquarium the ultimate algae-fighting crew. This 10-pack includes a mix of Mystery Snails and Zebra Turbo Snails to keep your tank spotless.⚡ Stock up today while supplies last.
-
55 Gallon Aquarium Setup - $400
This setup includes: light, glass tops, stand and tank only.Ideal for beginners and hobbyists seeking an affordable yet comprehensive solution for maintaining aquatic life.
72 Gallon Aquarium Setup - $1000
This setup includes: reef ready tank, lid and solid oak standPerfect for enthusiasts looking for a more expansive and personalized aquatic environment, offering greater versatility in fish and plant selection.