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Characters And How To Take Care Of The Yellow Watchman Gobies For Beginners

yellow watchman gobies

Ornamental fish is now a fishery commodity that has high economic value as a commodity sent abroad, thereby helping to increase the country’s foreign exchange. In the world’s ornamental fish business, popular Indonesian products have many species, both freshwater ornamental fish and seawater ornamental fish. Of the thousands of species of freshwater ornamental fish in the world, around 400 species originate from Indonesia. Indonesia also contributes approximately 600 species of seawater fish, including the one we will discuss, the Yellow Watchman Gobies.

Yellow Watchman Gobies or in Latin Cryptocentrus cinctus, popularly known as the yellow prawn-goby. Yellow Watchman Gobies Fish. Quoted from the journal Romero (2002), Cryptocentrus has its roots in the Greek words “Kryptos” which means hidden, and ” kentron ” which means to sting. This is taken from the habit of the yellow watchman gobies in looking for their prey.

Yellow Watchman Gobies are different from firefish goby and are seawater ornamental fish that have become excellent for hobbyists because of their color and unique facial shape, which looks like a squeak. So, this time Mascota will provide information about the Yellow Watchman Gobies which is very interesting to know.

Classification of Yellow Watchman Gobies

So here is the Classification of the Yellow Watchman Gobies as follows:

SpeciesCryptocentrus cinctus

Characteristics of the Watchman Gobies Fish

Yellow Watchman Gobies have a body shape similar to a torpedo with a maximum length of 10 centimeters. Cryptocentrus cinctus has 2 distinct dorsal fins with 7 spines and 10 soft rays, and an Anal fin with 1 spine and 9 soft spines.

In its natural habitat, it is two distinct colors, one yellow with added blue and the other with a brown hue with off-white additions. There is a pattern in the form of a dark brown line above the jaw. Watchman gobies fish have a brown mouth with additional thin brown stripes on the upper jaw.

The abdominal fins of the watchman gobies are attached to the pectoral fins and are used as a sucker called a frenum so that the watchman gobies can attach to rocks. The Yellow Watchman Gobies’ caudal fin is rounded.

Habits of the Yellow Goby

yellow watchman gobies
yellow watchman gobies

Unlike other types of fish that like to move around to explore places, Yellow Watchman Gobies prefer to relax on the sand all the time while ambushing incoming prey. If you see him in an aquarium, you will often see him sinking half his body into the sand and only seeing his head on the surface of the sand, with a sullen face.

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But behind the beauty and quirky character of the goby, there are a handful of people who don’t really like keeping this fish. Gobies have a habit of scraping sand to enter their bodies or just to relax. Because of this habit, in the end, some people don’t want to because they think this yellow can damage the beauty of the aquarium.

Even though the character of this fish is somewhat strange and is not liked by some lovers of marine aquariums, still not a few people are happy with this fish because of its unique color and character. Raising goby fish also provides benefits for the ecosystem in the aquarium. Gobies will eat the leftovers that fall to the bottom of the aquarium so that the cleanliness of the water will be maintained.

So it turns out that this goby is one of the varieties of fish that has fairly strong physical endurance. Even though this fish is tough, there is something you need to note before keeping the yellow. Mascota has summarized it from several sources:

How to Take Care of Watchman Gobies Fish

Pay attention to water quality

In maintaining seawater ornamental fish, water quality has become one of the basic things that support life in an aquarium. If the water quality is bad, then you can be sure that all the animals that are there will not survive.

So you have to regularly check the quality of the water in the aquarium, such as the level of salinity, water pH, temperature, and others. If you keep a coral aquarium, the lighting aspect is also one of the next important aspects that you need to pay attention to because the corals in the aquarium need sufficient lighting to help their growth.

Water Filtration System

Seawater aquariums must also be equipped with a fairly complex water filtration system. To maintain water clarity, you need to have a tool called a skimmer. This tool is useful for separating impurities that dissolve into the water. A skimmer is a tool that must be used in a saltwater aquarium filtration system.

Moss Cleaning

In saltwater aquariums, moss will grow quickly on the glass of the aquarium, so the appearance of the aquarium will be very bad if the moss is just left alone. So you have to be diligent in cleaning the aquarium glass of moss. Many tools can help clean aquarium glass, but if you have more budget, you can use aquarium glass cleaner magnets, which are now available in ornamental fish shops.

Checking the Sand

The watchman gobies we discussed earlier are fish that like to play in the sand. These fish like to dig in the sand and make holes in the sand, which is at the bottom of the tank. So every few days, you can rearrange and tidy up the messy sand caused by this sullen yellow. 

If you add coral, checking the sand should be done even more often because you are afraid that your favorite coral will be covered with sand because of the goby fish. If the coral is buried in sand, over time the coral can die.

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Gobies Food

You can give feed in the form of pellets and frozen shrimp. Gobies will generally eat the remains of food from other fish that fall to the bottom of the aquarium. This fish also likes to filter sand in its mouth with the aim of finding food in the sand. So actually this yellow goby is not fussy about food.

Cultivating Yellow Watchman Gobies

1. Spawning place

For spawning yellow watchman goodies, you can use an aquarium with a water size of more than 40 liters. Add 37 liters of water and add a pipe as a container for laying eggs by male and female breeders. The best water temperature is 26.7 degrees Celsius and adds lights as lighting with a duration of 12 hours.

2. Choose the right sires

Choose superior sires. Male brooders look brighter in color when compared to female fish. The size of the female is larger than the male, with a length of about 7 centimeters while the male is 5 centimeters. During spawning, the broodstock can be fed in the form of trash shrimp or pellets with animal ingredients 1 to 2 times a day.

3. Egg Care

After spawning occurs, the female sires will leave the nest. While the male will remain in the nest to guard the eggs. Don’t forget to remove the brooders, to prevent the eggs from being eaten by the sires.

This is because yellow watchman gobies are carnivorous fish. The eggs are generally brownish in color with a size of 1 millimeter. The eggs will finally hatch, approximately 4 days after spawning.

4. Larvae of Yellow Watchman Gobies

The place for raising the larvae is in the form of an aquarium with a size of more than 38 liters. Put in 37 liters of water and you may add a few rocks as a place to play and shelter for the yellow watchman gobies larvae. Don’t forget to add a heater and keep the temperature in the range of 27.8 degrees Celsius.

Add a lamp with a size of 100 watts. Also, pay attention to aeration as a source of oxygen for the larvae. The larvae of yellow watchman gobies range from 1 to 2 mm, are transparent in color, and have a large yolk sac.

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The larvae will eat the yolk when they hatch. After the yolk runs out, you can give Brachionus rotundiformis or rotifers. Meanwhile, you can give rotifers food in the form of nannochloropsis.

Price of Yellow Watchman Gobies

yellow watchman gobies
yellow watchman gobies

Yellow Watchman Gobies are expensive ornamental fish, 1 to 2.5 inches in size and are priced at $18 to $20 in markets. Meanwhile, the price for yellow watchman gobies in the domestic market is priced from 15 thousand Rupiah to 60 thousand Rupiah. Seeing the price, cultivating yellow watchman gobies can be very profitable.

Now, we have discussed in depth the Yellow Watchman Gobies, from its unique character, habitat, and how to care for this fish. Are you becoming more interested in keeping this fish in an aquarium at home??

Nooru Ariyoushi

Nooru Ariyoushi

Nooruariyoushi has been a fish hobbyist for 20 years and is now a blog writer sharing information about fish and how to care for them.


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