Blue Reef Chromis
Chromis cyanea
Price range: $37.99 through $39.99
| Stock | Variations | Price | Quantity | |
|---|---|---|---|---|
| Out of Stock | 2.25 - 3.25" - Caribbean | Original price was: $79.99.$41.99Current price is: $41.99. | Email me | |
| In Stock | 1.25" or smaller - Caribbean | Original price was: $70.99.$37.99Current price is: $37.99. |
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| Only 7 left | 1.25 - 2.25" - Caribbean | Original price was: $75.99.$39.99Current price is: $39.99. |
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Every order ships with our standard 3-hour live arrival guarantee. Need more time? Add our 5-Day Guarantee at checkout.
Full guarantee terms →Ships Monday – Thursday for next-day arrival at your nearest FedEx Hold location — typically ready by 9 AM. We monitor every delivery.
Shipping details →
Monday – Friday 8 AM – 9 PM
Saturday 12 PM – 4 PM
Sunday 12 PM – 9 PM
Healthy, stable animals from vetted suppliers — inspected before packing, shipped overnight. Decades of experience built this model so we can deliver premium livestock at 30%+ less than you'd pay elsewhere.
| Care Level | Easy |
|---|---|
| Temperament | Peaceful |
| Reef Safe | Yes |
| Functional Benefit | Ornamental Only |
| Diet Type | Omnivore |
| Mininum Tank Size | 55 gallons |
| Max Size | 6 inches |
| Temperature | 72–78°F |
| pH Range | 8.1–8.4 |
| Specific Gravity | 1.022–1.025 |
Blue Reef Chromis (Chromis cyanea) is a Western Atlantic “blue chromis” known for its solid blue coloration and constant midwater swimming above the rockwork. It’s a common pick for Caribbean biotope and community reef tanks where you want open-water movement without adding a large, territorial fish.
What You’ll Observe:
- Spending most of the day in the upper half of the tank, facing into the current and hovering in place
- Short, quick dashes back toward the rocks, then returning to the water column within minutes
- A loose “shoal” look where fish hold similar spacing rather than a tight ball at all times
- Fast response at feeding time, with repeated passes through the water column to grab small bites
To help your Blue Reef Chromis settle in, provide open swimming room plus plenty of rockwork “breaks” it can circle around. Offer a mix of small meaty foods and quality pellets in a few smaller feedings to match its natural, midwater feeding style. For the most consistent group behavior, add your chromis together and let them establish their spacing at the same time.
How tight do Blue Reef Chromis “school” in a home aquarium?
Most keepers see them form a loose shoal—swimming in the same area and direction—rather than a single tight school all day.
If I start with a small group, can I add more later?
Many hobbyists have better results adding them all at once, since established groups may treat new arrivals like outsiders.
Is it normal for one chromis to spend more time near a corner or under flow?
Yes—groups often have a “spacing” dynamic, and one fish may choose a consistent lane or resting spot while it finds its routine.
Do they need branching coral to feel secure?
They do well when the aquascape has lots of quick “in and out” pathways (branchy rock structure, arches, and overhangs) even if you don’t have branching corals.
Why do they look darker or lighter at different times of day?
Color often shifts with lighting and activity; many appear deeper blue under stronger spectrum/contrast and paler when resting or under whiter light.
We work with trusted suppliers who keep our specimens healthy and well-fed before shipping.
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