How To Breed Riff Msm

How to Breed Riff Msm: A Beginner’s Guide

Breeding Riff Msm can be an incredibly rewarding experience for aquarists, especially for those who are enthusiastic about maintaining a diverse and vibrant aquarium ecosystem. Riff Msm, or Riff Meiacanthus grammistes, are known for their unique appearance and interesting behavior, making them a desirable addition to any saltwater tank. If you’re a beginner looking to explore the world of Riff Msm breeding, this comprehensive guide will walk you through the essentials.

Understanding Riff Msm

Before diving into the process of breeding Riff Msm, it’s crucial to familiarize yourself with their basic characteristics and requirements. Riff Msm are commonly known as the “Dragonet Blenny” or “Scooter Blenny” due to their elongated body and dragon-like appearance. These fish are primarily found in the Indo-Pacific region, where they inhabit coral reefs and rocky areas.

Riff Msm are relatively small, with an average size of 3 to 4 inches. They are characterized by their vibrant colors, typically featuring a mix of yellow, blue, and black patterns. These fish are carnivorous by nature and feed on small invertebrates, such as copepods and amphipods, which are abundant in well-established saltwater aquariums.

Setting up the Breeding Environment

Creating an ideal breeding environment is vital for successfully breeding Riff Msm. Here are some essential steps to follow:

1. Tank Size and Requirements

Provide a spacious tank of at least 30 gallons, as Riff Msm require ample swimming space. Ensure the tank is well-established, with stable water parameters and a matured biological filtration system.

2. Suitable Tank Mates

Choose compatible tank mates that won’t pose a threat to the Riff Msm or compete for food. Peaceful species such as small gobies, blennies, and small wrasses are excellent choices.

3. Substrate and Decor

Introduce live rock and a sandy substrate to mimic the natural habitat of Riff Msm. The live rock will provide beneficial bacteria and hiding spots, while the sandy substrate will encourage natural behaviors like sifting.

4. Feeding and Nutrition

Ensure a sufficient and varied diet for your Riff Msm, consisting of high-quality frozen or live foods rich in copepods and amphipods. Supplement their diet with small, meaty marine-based pellets or flakes suitable for carnivorous fish.

Obtaining Breeding Pairs

Once you have set up the perfect breeding environment, it’s time to acquire a compatible pair of Riff Msm. Here are a few options for obtaining breeding pairs:

1. Purchasing Mature Pairs

Look for reputable fish stores or breeders that offer mature and healthy Riff Msm pairs. It’s essential to choose pairs that have already been observed pairing up or displaying courtship behavior.

2. Pairing Young Individuals

If you have a larger tank and are willing to wait, you can introduce two young Riff Msm to the same tank and allow them to pair naturally. However, this method requires patience and careful monitoring to ensure compatibility.

3. Online Forums and Communities

Participating in saltwater aquarium forums and online communities can be a great way to connect with other enthusiasts who may be willing to sell or trade breeding pairs.

The Breeding Process

Once you have successfully obtained a compatible Riff Msm pair and they have acclimated to their new environment, it’s time to begin the breeding process. Here’s a step-by-step breakdown of what to expect:

1. Courtship and Pair Bonding

Riff Msm engage in an elaborate courtship display, which involves the male performing various dances to attract the female. The male will also build a small nest using small pieces of rock or shell fragments to impress the female.

2. Spawning and Egg Fertilization

During courtship, the female will deposit eggs onto the nest created by the male. Once the eggs are in place, the male will fertilize them externally. It’s important to note that Riff Msm are pelagic spawners, meaning they release their eggs and sperm directly into the water column.

3. Egg Care and Incubation

After fertilization, it’s critical to monitor the eggs closely. If left unattended, the parents may consume the eggs. Consider using a breeding net or a separate rearing tank with gentle water flow to protect the eggs and prevent predation.

4. Hatching and Fry Care

After approximately 10 to 14 days, the eggs will begin to hatch, and the fry will enter a larval stage. At this point, you’ll need to provide infusoria or commercially available fry food to ensure their survival. As the fry grow, gradually introduce larger copepods and amphipods to their diet.


Breeding Riff Msm can be a fascinating journey for any aquarist. With careful attention to their specific needs, a compatible breeding pair, and diligent monitoring during the spawning process, you can successfully breed and rear these captivating fish in your very own saltwater aquarium. Remember to prioritize their welfare and take pride in contributing to the preservation and appreciation of these unique aquatic creatures.

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