How Much Do Mantis Shrimp Cost — And Why the Price Tag Is Only the Beginning
So you've seen the videos. The mantis shrimp smashes through glass, punches with the force of a .On top of that, 22 caliber bullet, and sees colors no human can even imagine. It's easy to get hooked on the idea of keeping one. But before you start dreaming about your new aquarium centerpiece, there's a real question to answer: how much do mantis shrimp actually cost?
The answer is more complicated than you'd think. The sticker price of the shrimp itself is just the tip of the iceberg. Between species variation, setup costs, and ongoing care expenses, the total investment can surprise you. Here's everything you need to know before you pull the trigger Easy to understand, harder to ignore..
What Are Mantis Shrimp, Exactly?
The Two Main Types
Mantis shrimp aren't actually shrimp at all — they're stomatopod crustaceans, which puts them closer to crabs and lobsters in the evolutionary tree. They split into two broad categories that matter a lot for potential owners.
- Smashing mantis shrimp have club-like appendages that deliver devastating blows. These are the ones that crack aquarium glass and pulverize snail shells. Peacock mantis shrimp fall into this group.
- Spearing mantis shrimp have elongated, spiked appendages designed for impaling soft-bodied prey like fish and worms. They tend to be slightly less destructive to tank setups, though they're still no joke.
Why People Keep Them
Aquarium hobbyists love mantis shrimp for their intelligence, vivid colors, and genuinely entertaining behavior. That said, a peacock mantis shrimp will watch you through the glass, track your movements, and sometimes even seem to recognize their owner. That's not something you get from most aquarium pets.
Quick note before moving on Not complicated — just consistent..
How Much Do Mantis Shrimp Cost?
Price Ranges by Species
The cost of a mantis shrimp varies widely depending on the species, size, color morph, and where you buy it. Here's a general breakdown of what you can expect That's the part that actually makes a difference..
| Species | Approximate Price Range |
|---|---|
| Peacock mantis shrimp (common) | $20 – $50 |
| Peacock mantis shrimp (rare color morph) | $50 – $150+ |
| Zebra mantis shrimp | $30 – $60 |
| Harlequin mantis shrimp | $20 – $40 |
| Spearing species (various) | $15 – $40 |
| Rare or imported species | $75 – $200+ |
These prices reflect what you'll typically find at reputable online retailers and specialty fish stores in the US. Prices fluctuate based on availability and season.
Wild-Caught vs. Captive-Bred
Wild-caught mantis shrimp are more common in the hobby, and they tend to be cheaper. But they often carry parasites, are under more stress from capture, and may have a harder time adjusting to aquarium life. On top of that, captive-bred specimens are rarer and usually cost a bit more, but they're generally healthier and more adaptable. If you can find one, it's worth the extra money Less friction, more output..
Size and Color Morphs Matter
Larger specimens often command higher prices, especially for species like the zebra mantis shrimp, which can grow to over a foot long. Color morphs — particularly vivid blue or green peacock mantis shrimp — can fetch a premium. A standard brownish peacock might run you twenty bucks, but a brilliant blue one with green accents can easily triple that price.
Where to Buy Mantis Shrimp
Online Retailers
Most mantis shrimp are purchased online. But specialty marine aquarium retailers ship them safely in insulated containers, and many hobbyists report good experiences with this method. Look for sellers with strong reviews, transparent shipping policies, and a guarantee on live arrival.
Local Fish Stores
Some local fish stores carry mantis shrimp, though they're not as common as clownfish or gobies. The advantage of buying locally is that you can inspect the animal in person and ask the staff about its origin and condition. The downside is that local stores sometimes mark up prices compared to online options.
Catching Your Own
If you live in a tropical coastal area, you can sometimes catch mantis shrimp by hand or with a trap in shallow reef environments. This is obviously free, but it comes with risks — you could get seriously injured by a strike, and wild-caught shrimp may introduce parasites into your tank.
The Real Cost: Tank Setup and Equipment
Why the Tank Matters So Much
Here's the part most people underestimate. A mantis shrimp needs a tank that can withstand its power. Consider this: glass aquariums will crack. And thin acrylic will scratch and eventually fail. You need a tank made of thick, high-quality acrylic — or at minimum, extra-thick glass rated for large, aggressive marine animals.
Essential Equipment Costs
A proper mantis shrimp setup isn't cheap. Here's what you're looking at for equipment alone.
- Tank (30–55 gallons recommended): $200 – $600 depending on material and brand
- Powerful filtration (canister or sump system): $150 – $400
- Protein skimmer: $100 – $300
- Heating system and chiller: $100 – $250
- Lighting (LED preferred): $100 – $300
- Substrate, rock, and décor: $50 – $150
- Water testing kits and additives: $50 – $100
A basic but solid setup can run you anywhere from $750 to $1,500 or more. If you want something elaborate with custom rockwork and high-end equipment, expect to spend even more.
The Tankmates Question
Mantis shrimp are not community tank animals. Even a spearer can be problematic. A smasher will destroy almost anything it can catch — fish, other shrimp, snails, crabs. Most keepers house mantis shrimp alone, which actually saves money on tankmates but means the entire tank is dedicated to one animal.
Ongoing Costs of Keeping a Mantis Shrimp
Food and Feeding
Mantis shrimp are carnivores, and they eat a lot. Now, a typical feeding regimen includes shrimp, mussels, squid, and sometimes small fish. Think about it: you can buy frozen marine foods in bulk to keep costs down. Budget roughly $20 to $40 per month for food Practical, not theoretical..
Water Maintenance
Marine aquariums demand consistent water quality. Salt mixes, RO/DI water, and replacement media for your filtration system add up over time. You'll need to test salinity, pH, ammonia, nitrite, and nitrate regularly. Monthly maintenance costs typically run $30 to $60.
Electricity
Electricity
Running a marine tank 24/7 isn't free. So between the heater, chiller, protein skimmer, return pumps, powerheads, and lighting, a 30–55 gallon mantis shrimp setup typically draws 200–400 watts continuously. Depending on your local electricity rates, that's roughly $25 to $60 per month. If you live in an area with high energy costs or run a chiller year-round, expect to be at the upper end of that range That's the part that actually makes a difference..
Veterinary and Emergency Costs
Exotic aquatic veterinary care is scarce and expensive. If your mantis shrimp develops shell disease, a bacterial infection, or suffers a molt complication, a consultation — if you can find a vet who sees invertebrates — can cost $100–$300 before treatment. That said, many keepers end up researching and treating issues themselves, which requires keeping medications like iodine supplements, antibiotics, and antifungal dips on hand. Budget $50–$100 annually for a basic medical kit.
Replacement Gear
Equipment fails. So heaters stick on or off. Pumps seize. Skimmers overflow. Salt creep corrodes outlets and cords. Now, plan to replace at least one major component every 12–18 months. A quality heater runs $30–$60; a return pump, $80–$200. Setting aside $10–$15 monthly for an equipment fund prevents panic purchases.
The Hidden Costs No One Talks About
Time Investment
A mantis shrimp tank demands weekly water changes (10–20%), daily feeding and observation, regular parameter testing, and equipment cleaning. That's 2–4 hours per week, every week, for the animal's 3–5 year lifespan (sometimes longer for Odontodactylus scyllarus). If you travel, you need a knowledgeable caretaker — not a neighbor who "can feed the fish.
Risk of Catastrophic Failure
A mantis shrimp that decides to burrow under your rockwork can trigger a collapse that cracks the tank. Think about it: a failed heater in winter can cook the system overnight. These events are rare but expensive when they happen. A power outage without a battery backup can wipe out your biological filtration in hours. A backup generator or solid UPS system adds $300–$800 upfront Still holds up..
Real talk — this step gets skipped all the time.
Opportunity Cost
Every dollar and square foot devoted to a mantis shrimp tank is a dollar and square foot you can't use for a reef tank, a planted freshwater display, or something else entirely. Mantis shrimp are fascinating, but they're a commitment that crowds out other possibilities.
Is It Worth It?
That depends entirely on what you value The details matter here..
If you want a low-maintenance, inexpensive pet that adds color to a room, a mantis shrimp is the wrong choice. The startup cost alone rivals a used car, and the ongoing demands rival a part-time job And that's really what it comes down to..
But if you're drawn to an animal with genuine intelligence — one that recognizes its keeper, solves puzzles, plans ambushes, and displays personality so distinct that keepers name them and mourn them — then the cost becomes the price of admission to something rare. Few marine animals interact with their environment, and their human, the way a mantis shrimp does Turns out it matters..
And yeah — that's actually more nuanced than it sounds And that's really what it comes down to..
Go in with open eyes. Budget for the tank, the gear, the food, the power, the time, and the inevitable surprises. Buy the thick acrylic. Which means install the chiller. Keep the medical kit stocked. And accept that for the next several years, a small, violent, brilliant crustacean will dictate a surprising amount of your schedule and your budget That's the part that actually makes a difference..
Most keepers will tell you: they'd do it again in a heartbeat.
