OSA Aquarium Superstore & Services

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OSA Aquarium Superstore & Services OSA houses the largest selection of both fresh/saltwater fish & corals in New England! Best of all, our prices cannot be beat! We’ve got you covered!
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Headquartered in Coventry, RI, Ocean State Aquatics & Aquarium Services is a company that is passionate and dedicated to providing the best complete aquarium installations, service, and maintenance to our clients. Our friendly and knowledgeable staff consistently produce high quality work and provide reliable, ‘round the clock service. OSA staff provide expertise and cater to a wide variety of clients at our multiple retail locations located throughout New England. Our design studio includes an extensive selection of aquariums of all shapes and sizes, as well as a multitude of aquascaping supplies to suit all of your aquarium needs. Whether you’re looking for substrate, driftwood, live plants, faux plants, or coral, stop into OSA! OSA also carries a wide-range of the best equipment, parts, chemicals, and supplements to meet all of our clients needs. We look forward to working with you here at Ocean State Aquatics & Aquarium Services!

These ropefish at the Groton location are looking for new waters! Come check their cute happy faces out while they’re 20...
10/11/2026

These ropefish at the Groton location are looking for new waters! Come check their cute happy faces out while they’re 20% off today and Monday! 😊

In case you missed out yesterday on the big Birthday Bash Sale! Today and tomorrow continued !!!
10/11/2026

In case you missed out yesterday on the big Birthday Bash Sale! Today and tomorrow continued !!!

10/10/2026

14 BIRTHDAY BASH Tomorrow October 10th doors open at 10AM!

10/10/2026

OSA BIRTHDAY BASH TOMORROW 10/10 10:00am -6:00pm massive sales! Both locations!

THIS SATURDAY!! Don’t miss out!
10/09/2026

THIS SATURDAY!! Don’t miss out!

THIS SATURDAY ONLY! Doors open at 10!
10/08/2026

THIS SATURDAY ONLY!
Doors open at 10!

🚨RED HOT OFF THE PRESS 🚨🗓️THIS SATURDAY OCTOBER 10th ONE DAY ONLY 📍BOTH LOCATIONS 🚪DOORS OPEN AT 10:00am 🐟DOORS CLOSE AT...
10/06/2026

🚨RED HOT OFF THE PRESS 🚨
🗓️THIS SATURDAY OCTOBER 10th ONE DAY ONLY
📍BOTH LOCATIONS
🚪DOORS OPEN AT 10:00am
🐟DOORS CLOSE AT 6:00pm

Dive into the largest selection of aquariums in the north east at OSA. Explore our massive livestock collection and build the aquarium of your dreams. Learn about our professionally trained maintenance crew, for hands-free aquarium keeping.

In search of a back up plan this weekend? Ahead of the Nor’Easter come get your battery back up air pumps at OSA!
09/25/2026

In search of a back up plan this weekend? Ahead of the Nor’Easter come get your battery back up air pumps at OSA!

09/18/2026

Don’t be shy like this pearly jawfish at the Groton location! You still have 3 hours before we close today to come on by and say hello! 🪸

Address

8 Sandy Bottom Road
Coventry, RI
02816

Opening Hours

Monday 12pm - 6pm
Tuesday 12pm - 6pm
Wednesday 12pm - 6pm
Thursday 12pm - 6pm
Friday 12pm - 6pm
Saturday 12pm - 6pm
Sunday 12pm - 5pm

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