Mantis Shrimp Food – The Ultimate Guide To Feeding Your Stomatopod

Written ByHoward Parker

Keeping a mantis shrimp is easily one of the most rewarding experiences you can have in the marine hobby. These “stomatopods” are incredibly intelligent, visually stunning, and possess a personality that few other invertebrates can match.

If you have decided to welcome one into your home, you likely already know that providing the right mantis shrimp food is the most important factor in maintaining their health and longevity. It is not just about filling their bellies; it is about mimicking their natural hunting behaviors to keep them mentally sharp.

In this guide, I am going to share everything I have learned about feeding these fascinating creatures. We will cover the specific dietary needs of smashers versus spearers, the best live and frozen options, and how to create a feeding schedule that keeps your water clean and your shrimp happy.

Understanding the Two Main Hunting Styles

Before you go out and buy a bunch of mantis shrimp food, you need to identify which type of mantis shrimp you are keeping. Their physical anatomy dictates exactly what they should be eating and how they prefer to catch it.

While there are hundreds of species, they generally fall into two categories: smashers and spearers. Each has a specialized set of raptorial appendages designed for a specific type of prey.

The Smasher Diet

Smashers, like the famous Peacock Mantis Shrimp, use a heavily calcified “club” to break open hard-shelled prey. In the wild, their diet consists mostly of snails, crabs, and bivalves.

If you don’t provide them with hard objects to hit, their clubs can actually become damaged or fuse during a molt. They need to use that incredible power to stay healthy.

The Spearer Diet

Spearers are the ninjas of the substrate. They have barbed, sharp appendages meant for grabbing soft-bodied, fast-moving prey like small fish and swimming shrimp.

They typically live in burrows in the sand and wait for something to swim by. Their dietary needs are less about “crunch” and more about high-protein, fleshy meals.

The Best Types of Mantis Shrimp Food

Variety is the spice of life, and for a predator this advanced, it is also the key to a long lifespan. Relying on a single food source will eventually lead to nutritional deficiencies.

I always recommend a mix of live food for enrichment and high-quality frozen food for daily nutrition. This ensures they get the vitamins they need while satisfying their instinctual urge to hunt.

High-Quality Frozen Options

Frozen foods are the most convenient way to ensure your pet is getting a balanced diet. You can easily soak these in vitamin supplements like Selcon to boost their immune system.

Some of the best frozen choices include:

  • Krill and Mysis Shrimp: Great for smaller species or juveniles.
  • Silversides: Ideal for spearers who need whole fish.
  • Clams and Mussels: Perfect for smashers; leave the shell partially intact so they have to work for it.
  • Squid: A very high-protein treat that most stomatopods find irresistible.

Live Food for Enrichment

Feeding live mantis shrimp food is not just about calories; it is about mental stimulation. Watching a smasher calculate the perfect strike on a hermit crab is a masterclass in nature’s engineering.

Good live options include:

  • Hermit Crabs: The classic “snack” for smashers.
  • Ghost Shrimp: Excellent for spearers to practice their lightning-fast grabs.
  • Small Shore Crabs: These provide a great workout for a Peacock Mantis.
  • Nassarius Snails: These are great because they also help clean the tank until they get eaten.

If you are just starting out with these incredible creatures, you might want to read more about [proper mantis shrimp care](https://aquifarm.com/mantis-shrimp-care/) to ensure your water parameters are as high-quality as your food choices.

Creating a Sustainable Feeding Schedule

One of the biggest mistakes beginners make is overfeeding. Because mantis shrimp are so active and “aware,” it is tempting to give them a treat every time they look at you.

However, these are messy eaters. Leftover mantis shrimp food will quickly rot in their burrows, leading to ammonia spikes and nitrate issues that can be lethal.

For Juvenile Mantis Shrimp

Younger, growing shrimp have a much higher metabolic rate. I recommend feeding them small amounts every day or at least five times a week.

Focus on smaller pieces of vitamin-soaked mysis or very small live ghost shrimp. This supports their frequent molting cycles.

For Adult Mantis Shrimp

Adults do much better on a “gorge and fast” cycle. Feeding them a substantial meal 3 to 4 times a week is usually plenty.

This mimics their natural environment where they might not catch a large crab every single day. It also keeps them motivated to come out of their burrow and interact with you.

The Importance of Shell-Bearing Prey for Smashers

If you are keeping a smasher in a [dedicated mantis shrimp tank](https://aquifarm.com/mantis-shrimp-tank/), you cannot ignore the importance of “crunch.”

The dactyl club of a smasher is a biological marvel, but it requires regular use. If a smasher only eats soft frozen food, it may fail to shed its old club properly during a molt.

This can lead to a condition where the new club is deformed or the shrimp becomes “stuck” in its old shell. Always ensure at least 30% of their diet involves breaking something open.

Even if you primarily feed frozen clams, leave the shell on. The effort required to smash through the calcium carbonate keeps their muscles toned and their appendages functional.

Target Feeding Techniques and Safety

Feeding time is the best time to bond with your pet, but you must be careful. A large Peacock Mantis can easily break a finger or deliver a deep puncture wound.

Never hand-feed a mantis shrimp. Even if they seem “tame,” their strike reflex is faster than your nervous system can react.

Using Feeding Tongs

Invest in a good pair of long, stainless steel or plastic feeding tongs. This allows you to place the food exactly where the shrimp can see it without putting your hands in the “strike zone.”

Gently wiggle the food near the entrance of their burrow. Once they grab it, let go immediately so they don’t strike the metal tongs and potentially chip their club.

The “Feeding Stick” Method

For spearers, I like to use a clear acrylic rod with a small piece of silverside attached to the end. This allows you to “mimic” a swimming fish.

It is incredibly exciting to see a spearer launch itself halfway out of its burrow to snag a piece of mantis shrimp food from the water column!

Unique Value: Mantis Shrimp Feeding Chart

To help you stay organized, I’ve put together this quick reference table for the most common species kept in the hobby.

| Species Type | Primary Food | Frequency | Enrichment Goal | | :— | :— | :— | :— | | Peacock (Smasher) | Hard-shell crabs, clams | 3-4x per week | Cracking shells for club health | | Smithii (Smasher) | Hermit crabs, mysis | 4-5x per week | Hunting small, mobile prey | | Lygiosquilla (Spearer) | Silversides, ghost shrimp | 3x per week | Mimicking fast-moving fish | | Ciliata (Spearer) | Small fish, live shrimp | 4x per week | Ambush hunting practice |

Common Problems: Why Is My Mantis Shrimp Not Eating?

It can be terrifying when your prize pet suddenly refuses its favorite mantis shrimp food. Before you panic, check these three common reasons.

1. Pre-Molt Behavior

This is the most common reason for a hunger strike. When a mantis shrimp is preparing to molt, it will often seal itself inside its burrow and refuse food for several days (or even weeks).

Do not force feed them during this time. Leave them alone and ensure the water quality is perfect. They are at their most vulnerable during a molt.

2. Poor Water Quality

Mantis shrimp are sensitive to high nitrates and low oxygen levels. If your water is “stale,” their appetite will be the first thing to go.

Make sure you have a strong protein skimmer and are performing regular water changes. If you are unsure about your setup, reviewing a guide on [mantis shrimp as a pet](https://aquifarm.com/mantis-shrimp-as-a-pet/) can help you troubleshoot your equipment.

3. Boredom or Overfeeding

If you feed the same frozen shrimp every single day, your stomatopod might simply get bored. Try introducing a live emerald crab or a different type of bivalve to spark their predatory interest.

FAQ: Common Questions About Feeding Mantis Shrimp

Can I feed my mantis shrimp supermarket seafood?

Yes! Fresh (not cooked) shrimp, scallops, and clams from the grocery store are excellent. Just make sure they haven’t been treated with preservatives like sodium tripolyphosphate.

Do mantis shrimp eat algae?

Generally, no. They are carnivores. While they might accidentally ingest some while hunting, they do not graze on algae like other shrimp or snails.

Is it safe to keep fish with a mantis shrimp?

For a spearer, any fish is a potential meal. For a smasher, fast-moving fish are usually safe, but slow-moving bottom dwellers like blennies or gobies will eventually be caught and eaten.

How do I know if I’m overfeeding?

If you see pieces of food rotting in the corners of the tank or if your nitrate levels are climbing rapidly, you are likely feeding too much or too often.

Can they eat feeder goldfish?

I advise against it. Freshwater feeder fish often lack the specific fatty acids (like Omega-3s) that marine predators need. Stick to marine-based proteins for the best results.

Final Thoughts on Feeding Your Stomatopod

Providing the right mantis shrimp food is about more than just survival; it is about allowing these incredible animals to express their natural behaviors. By balancing frozen staples with live “challenge” foods, you ensure your shrimp stays vibrant and healthy.

Remember to keep a close eye on their molting cycles and always prioritize water quality. A well-fed mantis shrimp is a fascinating, long-lived companion that will never cease to amaze you with its intelligence and power.

Don’t be afraid to experiment with different types of seafood to see what your specific pet prefers. Every mantis shrimp has its own “personality,” and finding out their favorite snack is part of the joy of keeping them!

Howard Parker
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