Fluid Dynamics International
Long Island Aquarium Store

Great shop! Huge selection and experts able to help you make the best choices for your aquarium

I stopped in the Fluid Dynamics for the first time, and what a great surprise. John and Tyler are both awesome. These guys know their stuff and are willing to share an Aquarist knowledge to the hobbyist, truly miles above big chain stores. If your passion is freshwater or saltwater, coral or planted tanks, hardscaping or you just need to see what a real aquarium shop looks like, this is the place.

Clean, knowledgeable staff good fish at the store.

They have done a fantastic job maintaining my 800 gallon salt water tank! Never had a issue with these guys and they are always there fast when something goes wrong.

Excellent store. Excellent service. Thank you John and Fluid Dynamics.

Knowledgeable and helpful. See you for my next water change.

Very knowledgeable and professional people. They aren't just trying to pawn products off to you. They let the customer decide with the amazing advice that they give. Every fish tank is crystal clear and the overall establishment is especially clean.

Beautiful fish tanks and very friendly knowledgeable staff, amazing service. Easily the best fish store on Long Island!

Good place, the boys are very good.
I found the best fish in the area 😊

These guys are the most professional aquarium service company we’ve worked with on Long Island. We had a custom aquarium installed by another company and it just never looked great. We tried another aquarium company with good reviews, but we still had a lot of the same issues. We called Fluid Dynamics as a last attempt to get things right and they’ve been great! Everything in our reef aquarium is thriving and growing finally! Highly recommend these guys for any of your aquarium needs. They never pushed anything on us, their billing is fair, and they’ve been patient with all of our questions and concerns. We were almost ready to get rid of our tank, but this company saved us a huge headache!