The best blue Jack Dempsey fish listing depends on whether you want a small group of juveniles or a larger individual. The Swimming Creatures two-pack suits buyers seeking a pair of approximately 0.75-inch electric blue juveniles, while its four- and six-packs offer more fish. The 1–1.5-inch four-pack is a larger juvenile option, and Quinn’s Fins lists a 2–3-inch Jack Dempsey. Compare size, quantity, and the limited care details provided before choosing.
| Listing | Listed size | Best suited for |
|---|---|---|
| Swimming Creatures two-pack | Approx. 0.75 inches | Buyers seeking two juveniles |
| Swimming Creatures four-pack | Approx. 0.75 inches | Buyers seeking four juveniles |
| Quinn’s Fins Jack Dempsey | 2–3 inches | Buyers comparing a larger listed fish |
| Electric Blue Jack Dempsey four-pack | 1–1.5 inches | Buyers seeking larger juveniles |
| Swimming Creatures six-pack | Approx. 0.75 inches | Buyers seeking six juveniles |
Swimming Creatures Blue Dempsey Two-Pack

This listing includes two live Blue Electric Dempsey fish, each approximately 0.75 inches long. The seller describes their coloration as electric blue with subtle iridescent hues. It also characterizes them as moderately active, often swimming through the middle and bottom areas of an aquarium.
Best for: Buyers who want two small juveniles and prefer a listing that describes activity and coloration. It was selected as a straightforward small-quantity option among the supplied electric blue listings.
Consider: These are very small juvenile fish, so the listing’s size should be considered when planning acclimation and care. The supplied details do not specify tank requirements or individual fish compatibility.
Swimming Creatures Blue Dempsey Four-Pack

This live-fish listing offers four Blue Electric Dempseys at approximately 0.75 inches each. Its feeding information says the fish are omnivorous and accept high-quality flakes, pellets, and live or frozen foods such as brine shrimp and bloodworms. The seller also recommends regular plant-based food supplementation.
Best for: Buyers who specifically want four small juveniles and value having feeding guidance in the listing. The combination of a stated quantity, approximate size, and diet information makes it easier to compare with the other juvenile packs.
Consider: A four-pack means planning for multiple fish, not just a single specimen. The listing does not provide tank dimensions or a stocking plan, so confirm that your setup can accommodate the group before ordering.
Quinn’s Fins Jack Dempsey

Quinn’s Fins lists a 2–3-inch Jack Dempsey. The supplied product information does not identify it specifically as an electric blue variety, and it does not include additional details about coloration, diet, temperament, or the number of fish included.
Best for: Buyers comparing a larger listed Jack Dempsey size with the approximately 0.75-inch and 1–1.5-inch juvenile options. It was included because it is the only supplied listing with a stated 2–3-inch size.
Consider: Do not assume this listing is an electric blue fish based on the name alone. Check the current product details with the seller for variety, quantity, and care information before choosing it for a blue Dempsey purchase.
Electric Blue Jack Dempsey Four-Pack

This listing offers four Electric Blue Jack Dempseys measuring 1–1.5 inches, larger than the 0.75-inch fish in the Swimming Creatures packs. The description highlights metallic blue coloration and describes the variant as less aggressive than standard Jack Dempseys, while noting suitability for semi-aggressive community setups. It also describes the fish as tank-raised.
Best for: Buyers who want four electric blue juveniles in the larger of the two stated size ranges. The temperament comparison and tank-raised description provide additional selection details not present in every listing.
Consider: “Less aggressive” does not mean guaranteed compatible with every fish. Evaluate the needs and temperament of current tank inhabitants before considering a community setup.
Swimming Creatures Blue Dempsey Six-Pack

This listing is for six live Blue Electric Dempseys, each approximately 0.75 inches long. The seller describes the fish as a hybrid of the popular Jack Dempsey cichlid, with electric blue coloration and a manageable temperament. These details make the product distinct from the listings that focus mainly on quantity or feeding.
Best for: Buyers seeking the largest listed group of small Blue Electric Dempseys. It was selected for its six-fish quantity and explicit description of the electric blue variety.
Consider: Six juveniles require a plan for the group as they grow. The supplied features do not specify aquarium size, adult size, or how many can be housed together, so research those needs before buying.
Buying Guide: How to Choose a Blue Jack Dempsey
Should you choose a juvenile or a larger fish?
Compare the listed size with your experience and setup. Four options here are approximately 0.75-inch juveniles, while the electric blue four-pack is listed at 1–1.5 inches. Quinn’s Fins lists a 2–3-inch Jack Dempsey, but its supplied description does not confirm an electric blue variety. Verify the fish’s identity and size if color is essential.
How many fish should you order?
Quantity ranges from two to six fish in the pack listings. Choose a group size only after considering the aquarium’s capacity and a long-term housing plan. A larger pack is not automatically a better choice: the listings do not provide enough information to determine a suitable group size for every aquarium.
What should you check before ordering live fish?
- Confirm the variety, approximate size, and number of fish included.
- Review the seller’s current shipping, arrival, and acclimation instructions.
- Check diet details; one listing specifically describes omnivorous feeding and food examples.
- Plan for tankmates carefully. A listing’s temperament description is not a guarantee of compatibility.
- Ask the seller about care requirements not stated in the product details.
Frequently Asked Questions
Are all five listings specifically for Electric Blue Jack Dempseys?
No. Four listings explicitly name Blue Electric or Electric Blue Dempseys. Quinn’s Fins lists a Jack Dempsey but does not identify it as an electric blue variety in the supplied details.
Which listing includes the most fish?
The Swimming Creatures six-pack lists six Blue Electric Dempsey juveniles, each approximately 0.75 inches long.
Which listing has the largest stated size?
Quinn’s Fins lists a 2–3-inch Jack Dempsey. Its supplied details do not confirm that it is the electric blue variety.
What do Blue Electric Dempseys eat?
One listing describes them as omnivores that accept high-quality flakes, pellets, and live or frozen foods, with plant-based foods as a supplement.
Are Electric Blue Jack Dempseys suitable for community aquariums?
One seller describes its electric blue fish as less aggressive than standard Jack Dempseys and suitable for semi-aggressive community setups. Compatibility is not guaranteed, so consider tankmates and verify care needs before purchase.