Watchman Goby

Name: Watchman Goby
Brand: New Dawn Aquaculture
Price: 39.99 CAD
Availability: OutOfStock

$39.99

Earn [points_amount] when you buy this item.

Cryptocentrus cinctus

The captive-bred Yellow Watchman Goby is a beautiful goby that naturally varies in colour a bit. They can be mustard, pale with olive-grey bands, or bright yellow, all with iridescent blue dots. Feeding a diet heavy in astaxanthin and carotenoids can help them to retain their bright coloration. Gobies on lighter-coloured substrates also tend to be brighter over time.

Yellow Watchman Gobies are well-behaved reef inhabitants that will not pick at coral, sessile invertebrates, or other species of fish. Avoid keeping it with aggressive species or animals that are large enough to eat small fish. Like other gobies, these can easily jump out of an aquarium when chased or frightened, so a tight-fitting lid is required. With a max size of 4" they require an aquarium of at least 30 gallons. Though they are peaceful fish, they will use their large mouths to display or push other fish away from their burrows. They are territorial toward other shrimp gobies, so be sure to give each goby adequate room for territory if you're keeping more than one shrimp goby. We recommend using an acclimation box to introduce new fish to your aquarium.

Breeder
Eating	1mm PE Pellets
Minimum Tank Size	30 Gallons
Fully Grown Size	4 Inches
Temperament	Peaceful

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

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

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

At New Dawn Aquaculture, we guarantee that your livestock arrives alive and healthy—no exceptions. Here's how it works:

What’s Covered

All shipped livestock, including corals, fish, inverts, and live foods.

How It Works

Be present for delivery and follow our acclimation guide.
Report any issues within 48 hours of delivery by emailing info@ndaquaculture.ca with clear photos of the unopened livestock.