Fresh stock every week

Flowerhorns, stingrays & monster fish

Hand-picked show-grade fish, packed in oxygenated bags and shipped to your door with a live arrival guarantee.

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Live arrival guarantee
See our Live Arrival policy for details
Oxygen-packed shipping
Double or triple bagged, heat packs in cold weather
New fish weekly
Fresh imports and local stock every week
Visit us in Oak Lawn
4724 W 103rd St · (708) 581-4246

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Our specialty

The flowerhorn experts

J4 started with flowerhorns, and it's still what we know best. Browse our hand-selected fish, from juveniles to show-ready adults.

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What fish keepers say

Loved by our customers

4.8
446 reviews on Google
“Always has a large selection of fish, nano, monster and all in between.”
Google review
“Staff is excellent. Selection is superb. I highly recommend this place!”
Google review
“The staff is always super helpful and friendly.”
Google review
“Great shop and employees who takes time with customers.”
Google review
Read all reviews on Google

For stores & resellers

Wholesale accounts

Own a fish store or aquarium business? Open a wholesale account for bulk pricing on flowerhorns, cichlids, plecos and more.

  • Bulk pricing on livestock
  • First access to new shipments before they go public
  • Dedicated support from the J4 team

Apply for a wholesale account

Store address

Enter your store's business address, not your home address. Wholesale accounts are for retail locations only.

We review every application and email you once your wholesale pricing is active.

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See new arrivals first

Unboxing videos, tank tours and fresh stock drops before they hit the website.

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New customers

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your first order

Join the J4 list and get your code right away, plus first word on everything new.

  • New fish arrivals the moment they land
  • Exclusive subscriber-only coupons
  • Early access to sales and restocks
  • Pre-order alerts for rare shipments

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One use per new customer on your first order. Unsubscribe anytime.