Only had it a couple of weeks now! He is eating and exploring the new world! He actually ventures out and about, not racing into the rock structure to hide!
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New Dawn Aquaculture | SKU:
Blue Mandarin
Regular price
$139.99
Unit price
Blue Mandarin is backordered and will ship as soon as it is back in stock.
Pickup available at New Dawn Aquaculture
Usually ready in 1 hour
Captive-Bred Blue Mandarin (Synchiropus splendidus), also known as the Green Mandarin, is one of the most recognizable reef fish in the hobby. This fish is prized for its electric blue patterning, orange-red accents, and constant grazing behavior around rockwork and substrate.
This is a captive-bred specimen, which makes it a more practical option than a wild mandarin for many reefkeepers. Captive-bred Blue Mandarins are generally more adaptable to prepared foods, but they still do best in a mature, stable aquarium with natural microfauna and a calm feeding environment.
Why Captive-Bred Matters
- Typically better prepared-food acceptance than wild mandarins
- A more approachable option for reefkeepers with an established feeding plan
- Well suited to mature reef systems with live rock and pod support
Tank Readiness
Blue Mandarins should be added to an established reef aquarium, not a newly set up system. Even captive-bred specimens benefit from abundant live rock, natural forage, and stable conditions. A mature 30+ gallon aquarium with peaceful tankmates is the best starting point.
Mandarins are slow, deliberate feeders. They can struggle in tanks with fast or aggressive eaters that intercept food before it reaches the bottom. Feeding small foods in a lower-flow moment can make a big difference during acclimation.
Feeding Guidance
The biggest factor in long-term success is consistent access to appropriately sized food. Small frozen foods and live pod support are especially helpful during acclimation and for smaller specimens.
- Offer small meaty foods that sink and remain available near the substrate
- Feed more than once daily when possible
- Support natural grazing with live pods in the system
- Do not rely on oversized foods or assume competition-heavy tanks will work well
Helpful pairings from our store include Planktura Tisbe Live Copepods for natural forage and PE Frozen Calanus as a nutrient-dense frozen option for smaller mouths.
Compatibility Notes
Blue Mandarins are peaceful, but they can be territorial with their own kind. Avoid keeping two males together in the same tank, as they are likely to fight. In most aquariums, they are best kept singly unless you are intentionally keeping a compatible pair in a suitable, well-established system.
They also do best with calm tankmates and enough rockwork to graze, explore, and retreat comfortably.
Before You Order
This fish is best suited to reefkeepers who can provide a mature tank, patient acclimation, and a thoughtful feeding routine. If you are planning a mandarin around natural live food production, browse our Reef Pulse copepod strain guide to choose the best fit for your system.
For delivery expectations and livestock coverage, review our shipping information and Arrive Alive Guarantee.
Our Water Parameters
Our Water Parameters
- Temperature: 24-26 °C (75-78 °F)
- Salinity: 1.026 SG, 35 ppt
- PH: 8.1-8.4
- Ammonia: 0 ppm
- Nitrite: 0 ppb
- Nitrate: 3-15ppm
- Phosphate: 0.03-0.15 ppm
- Alkalinity: 8 dKH
- Calcium: 440 ppm
- Magnesium: 1320 ppm
Acclimation
Acclimation
Temperature Match
Place the sealed bag containing the fish or invertebrate into your tank. Allow it to float for 15-20 minutes to gradually equalize the temperature between the bag and your aquarium. This step minimizes stress caused by sudden temperature changes.
Drip Acclimation
Set up a drip acclimation system by using airline tubing. Start a slow siphon from your tank into the bag or bucket containing the fish or invertebrate, allowing water to drip slowly. Acclimate over a period of approximately 30 minutes, gradually increasing the volume of tank water to match salinity and other water parameters.
Check Salinity
Use a refractometer to measure the salinity in the bag or acclimation container. Ensure the salinity matches your tank’s salinity before transferring the fish or invertebrate. Matching salinity helps reduce stress and prevents shock when introducing new animals.
Release Fish/Invert
Gently transfer the fish or invertebrate into the tank, avoiding netting them if possible to reduce physical stress. Allow the animal to swim out on its own if transferring from a container. Discard the acclimation water, as it may contain contaminants.
How We Pack Livestock
How We Pack Livestock
At New Dawn Aquaculture, we take every step to ensure your marine life arrives alive and thriving!
Carefully Packed for a Safe Journey
- Livestock is hand-packed in sealed oxygen-filled bags with fresh saltwater.
- Insulated coolers with heat or ice packs keep conditions stable, regardless of weather.
- Built to handle up to 48 hours in transit.
Fast Delivery, Every Time
We ship FedEx Priority Overnight so your marine life arrives the next day, reducing stress and maximizing health.
Our Promise
Healthy, vibrant marine life delivered to your door, guaranteed. Shop with peace of mind—your aquarium deserves the best!
Arrive Alive Guarantee Policy
Arrive Alive Guarantee Policy
Every shipped livestock order is covered by our Arrive Alive Guarantee. Report any issue within 48 hours of delivery so our team can review the claim and make it right. Read the full Arrive Alive Guarantee
Blue Mandarin is backordered and will ship as soon as it is back in stock.
Reefkeeper reviews
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Arrived in great condition. Active and hunting within minutes after acclimation.
Everything was good. Fast shipping and fish arrived healthy
Do these eat pellets?
Answer:
Captive-bred mandarins are trained on prepared foods, so they generally have a better chance of accepting frozen foods and small pellets than wild mandarins. That said, mandarins are slow, cautious feeders and may take time to eat prepared foods consistently in a new tank. We still recommend having a healthy copepod population established before adding one, so they have a natural food source while they settle in.
Payment & Security
Payment methods
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Foods we use in our fish systems
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Farmed, Tested, Trusted
Aquacultured coral, real farm standards, and products we actually use.
New Dawn is built around aquacultured coral, captive-bred marine life, and clear farm-backed care guidance from a real coral farm. Alongside the livestock we grow, we carry reef products and essentials that reflect the systems, husbandry standards, and day-to-day practices behind the farm itself.
Aquacultured Coral
Aquacultured coral is grown in aquarium conditions, which helps it arrive better adapted to life in a reef tank. That often means hardier coral, more predictable performance, and a clearer connection between how it was grown and how it can thrive in a customer’s system.
Farm-used reef products
The reef products we carry are not random add-ons. They are equipment, supplies, and essentials tied to our own farm systems, so the storefront stays connected to real husbandry practice.
Shipping and pickup
Shipping and local pickup should feel straightforward. We make timing, preparation, and fulfillment expectations clear so you know what to expect before your order is on the way.
Care and order clarity
From pre-order questions to post-arrival care, New Dawn keeps customers close to the farm standards, handling expectations, and next steps that make livestock orders easier to plan.
