About
Twins Aquarium in Stockton, California is one of those family-run pet shops that inspires fierce loyalty despite — or maybe because of — its rough-around-the-edges charm. Owner John has been the beating heart of this operation for years, and longtime customers drive over an hour to take advantage of what many consider the best fish prices between the Bay Area and Sacramento. The saltwater selection is a major draw.
Reviewers consistently praise the variety and health of marine fish, with Kole Tangs, bubble corals, and other reef livestock available at prices that undercut bigger shops. The freshwater side holds its own too, with a notable discus selection and healthy specimens like the Red Tail Catfish one customer watched grow from 5 inches to 13. Corals are a particular strength — multiple buyers report picking up pieces well below market rate.
John's real value goes beyond inventory. He's earned a reputation as a walking fish encyclopedia, the kind of owner who will test your water on the spot, diagnose a soap contamination issue in your gravel, and hand you the exact chemicals you need — all in one visit. His willingness to steer customers away from purchases that don't fit their setup speaks volumes.
When disease strikes a home tank, regulars know John has them covered with advice and medications. The store itself is admittedly cramped, packed floor to ceiling with tanks, supplies, cages, feeders, birds, reptiles, and small animals. Some tanks run cloudier than ideal, and prices aren't always posted, so you'll need to ask.
The atmosphere is bustling — this is a go-go-go kind of shop, especially on busy days when John's daughter is helping manage the crowd. But the value proposition is hard to argue with. Twins Aquarium delivers competitive pricing on both freshwater and saltwater fish, live corals, frozen fish food, and aquarium equipment, all backed by decades of hands-on expertise.
It's the kind of place where a ten-year customer still shows up every two weeks to check the new stock.
What they offer
Livestock, services, water
- Livestock & products
- Services
- Specializes in
Highlights
What makes them special
- Exceptionally competitive pricing on both freshwater and saltwater fish
- Strong coral and marine fish selection including tangs and bubble corals
- Owner John provides free water testing and expert disease diagnosis
- Notable discus selection for freshwater enthusiasts
- Family-owned Stockton institution with a loyal multi-year customer base
From keepers
Customer reviews
“Front desk didn't know what they were doing besides that it was a alright experience even got free food to feed the fish”
— Google Genius3.0a month ago“I have been a customer for 10 years love it here”
— Tracy “Niki” House5.03 months ago“Best price and large selection!”
— Matt Do5.03 months ago“They had a good selection of saltwater fish and at reasonable prices. Mine were all disease free as well.”
— Austin Hagele5.04 months ago“Tanks are a bit dirty and there are no prices listed anywhere. However, I got a good price in a bubble coral and was quoted a good price on a Kole Tang so it's worth visiting for the value.”
— Lindsay Tang4.05 months ago“Love the place typical cheap friendly old asian man. The daughters awsome sometimes you can tell shes havin a bad day by the way she replies to customers but i dont really blame her cus that place is packed most the day from opening till closing 100%she gets a handfull of headaches from unruly customers.”
— mow pow5.05 months ago“Went in for the 1st time, turned around and walked out, had a funny smell and the fish tanks were murky 😛”
— Lois Lunsford2.06 months ago“This shop is such an awesome pet store that brings you back to the old times when what a family owned pet store used to be. They have a lot of animals for sale and a lot of supplies for birds, fish, reptiles, small hamsters and guinea pigs. Prices here are exceptional, I don’t think you can find this price elsewhere. The owner is also very knowledgeable and helpful as well. I got a singing canary here and my bird is so healthy and beautiful! It may not be the fanciest place like a big chain store but it is a business that is so worth supporting!”
— Dylan Vuong5.08 months ago“Mom and pop place. Very crowded pet shop and you can even consider it messy but the fish and animals are healthy and the price is unmatched from the bay area to Sacramento. Been visiting every 2 weeks to check out new stock.”
— Benny Yang5.08 months ago“Best place ever”
— Eddy ledezma5.0Edited 10 months ago
Reference
Frequently asked questions
Note — Store information and services may change. Always call (209) 472-0669 to confirm current availability, hours, and services before visiting Twins Aquarium.