SKU: 78360565415

Crocodile Pipefish Syngnathoides Biaculeatus

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Description

Crocodile Pipefish Syngnathoides BiaculeatusCrocodile Pipefish (Syngnathoides biaculeatus)(Also known as the Double Ended or Alligator Pipefish) OverviewThe Crocodile Pipefish is one of the most distinctive members of the Syngnathidae family, named for its elongated, stick like body and snout resembling a miniature crocodile. Reaching up to 2830 cm (1112 inches) in length, it is among the largest pipefish species. Its camouflage and graceful movement make it a fascinating display animal, though

Crocodile Pipefish (Syngnathoides biaculeatus)

(Also known as the Double-Ended or Alligator Pipefish)

Overview

The Crocodile Pipefish is one of the most distinctive members of the Syngnathidae family, named for its elongated, stick-like body and snout resembling a miniature crocodile. Reaching up to 28–30 cm (11–12 inches) in length, it is among the largest pipefish species. Its camouflage and graceful movement make it a fascinating display animal, though its care is challenging and suited only to experienced aquarists.

Origin

Widespread throughout the Indo-Pacific region, including the Red Sea, East Africa, Indonesia, northern Australia, and Micronesia. Typically found in seagrass beds, mangrove shallows, and calm reef lagoons, where it hides among vegetation and hunts for tiny crustaceans.

Feeding

The Crocodile Pipefish is a specialised micro-carnivore. In nature, it feeds almost exclusively on live planktonic organisms such as copepods, amphipods, and small shrimp larvae. In captivity, success depends on access to live food and a mature, pod-rich environment. Offer:

  • Live copepods and amphipods (essential)
  • Live enriched baby brine shrimp
  • Live mysis shrimp or small feeder shrimp (as treats)
  • Cultured live foods from refugiums

Some individuals may slowly adapt to frozen cyclops or mysis, but this is uncommon. Feed multiple small meals daily.

Tank Mates

Extremely peaceful and best housed with other gentle, slow-moving species. Suitable tank mates include:

  • Seahorses and other pipefish
  • Gobies and blennies (non-aggressive species)
  • Cardinalfish and firefish
  • Small, reef-safe invertebrates

Avoid fast-feeding or aggressive species (wrasses, dottybacks, triggers, tangs) that outcompete them for food or cause stress.

Aggression

Completely peaceful. Can be kept singly, as pairs, or in small groups in larger systems. Males may carry eggs on the underside of their bodies, similar to seahorses.

Experience Level

Advanced to expert. Requires pristine water conditions, abundant live microfauna, and a calm environment. Due to its size and feeding behaviour, it is one of the more demanding pipefish species to keep successfully long-term.

Water Parameters
  • Temperature: 24–27°C (75–81°F)
  • pH: 8.1–8.4
  • Salinity: 1.022–1.025 SG
  • Hardness (dKH): 8–12
  • Tank Size: Minimum 100 gallons (380L) for an adult pair or small group

Provide a naturalistic environment with macroalgae, seagrass, and live rock, gentle current, and abundant hiding spots.

Reef Compatibility

Reef safe with caution. Will not harm corals or invertebrates but may struggle in busy reef tanks with active feeders. Best kept in dedicated seagrass or peaceful reef systems with refugiums supporting live copepod populations.

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SKU: 78360565415

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David MacDonald
Massapequa, US
★★★★★ 5
Great Product
Size: 11.5-12.5 Women/10.5-11.5 Men, Color: Black-w001
This is a great water shoe, lightweight and very functional. Fits true to size. Very comfortable and love the no slip bottom. Well worth the purchase price
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Reviewed in the United States on April 29, 2026
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Steve Hall
Natrona Heights, US
★★★★★ 5
A Diabetic Traveler's Best Friend at the Hot Springs!
Size: 13-14 Women/12-13 Men, Color: Black-w001
I'll be honest — I bought these almost last minute before heading out on vacation to the Hot Springs in Carson City, Nevada. As someone with diabetes, I have to be really careful about my feet, especially on rough or hot concrete surfaces. Pool decks and spa areas can be brutal, and I've had too many close calls just walking around barefoot. I grabbed these water shoes almost as an afterthought, and they ended up being one of the best decisions of the whole trip. From the moment I slipped them on, I could tell they were going to do the job. They fit true to size — no awkward sizing guesswork — and they hugged my feet snugly without feeling restrictive or causing any pressure points (a big deal for me). The sole gave me just enough protection from the concrete and wet surfaces around the springs, and I never once felt like I was going to slip. That peace of mind alone was worth every penny. They're lightweight enough that I barely noticed I had them on, and they dried quickly after getting splashed or submerged. No heavy, waterlogged feeling dragging me down. I wore them in and out of the water all day and my feet felt totally fine — no soreness, no irritation, nothing. For someone managing diabetes, that's honestly huge. I genuinely have zero complaints. These delivered exactly what they promised and then some. Whether you're headed to a hot spring, a beach, a pool, or just doing some light water yoga, these are a solid buy. Hope this helps!
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Reviewed in the United States on May 14, 2026
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Mark
Chelsea, US
★★★★★ 5
Great water socks
Size: 8.5-9.5 Women/7.5-8.5 Men, Color: Shark Blue
Perfect! I’m autistic and this was the last piece of the puzzle for my sensory experience at the pool. They feel like wearing socks with hard soles on and are great for if you need to walk through gravel or anything. They don’t trap water much and the fabric is stretchy and comfortable. I liked the range of colors, I got the one with sharks. I wear a men’s size 8 shoe and I got the same size here, it was the correct size with a little extra room.
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Reviewed in the United States on May 27, 2026
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Amazon Customer
San Leandro, US
★★★★★ 4
Colorful, comfortable, durable water shoes
Size: 8.5-9.5 Women/7.5-8.5 Men, Color: Shark Blue, Size: 8.5-9.5 Women/7.5-8.5 Men, Color: Shark Blue
I have ordered 5 pairs of these water shoes. The quality is amazing the bottom is durable, the stitching feels strong, they are comfortable, slip resistant, fit true to size and look awesome! We ordered the paisley, the blue geo, galaxy, lightning (lightning was sent back as we received the wrong size) and sharks. Only reason they are getting a 4 star instead of 5 is because I would much rather have the cushion inside sewn in instead of it being like an insert but that is what I find to be most common with these type of shoes.
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Reviewed in the United States on April 29, 2026
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Susan L.
Charlottesville, US
★★★★★ 5
Love these for beach foot protection!!
Size: 10-11 Women/9-10 Men, Color: Black-w001
These water shoes were perfect for our cruise to Grand Turk. The beach was a little rocky once in the water & the bottom of these shoes protected our feet and made it comfortable they dry quickly they are lightweight and easy to pack and carry in a beach bag. I bought two pair of the black one for me one for my husband, and he even wore them which was shocking into me and loved them.!!!! they don’t have walking support so they’re definitely something that you bring with you put on your feet before you enter like water where you can’t see the bottom or rocks/coral and they totally protect your foot on the bottom
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Reviewed in the United States on May 13, 2026

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