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Cambarellus diminutus

Least Dwarf Crayfish

Least Dwarf Crayfish

Regular price $10.99
Regular price Sale price $10.99
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29 in stock

Remarks: The least dwarf crayfish is a tiny species native to the southeastern United States. Most are brown or gray in color, but some can be a pleasant powder blue. Despite their small size, this species is surprisingly curious and brave making it very entertaining to observe.

  While crayfish may seem to just be scavengers, they are also opportunistic predators. If a fish or another invertebrate that are small enough get close enough or the crayfish manages to sneak up on them, it will attack and attempt to eat them. These attacks usually occur at night so while things may seem fine during the day, other tank inhabitants could be getting harassed at night. If a fish is too large for this small species to attack, there is a very high likelihood it will be the one harassing the crayfish.

  Plants should only be included in their tanks if you are okay with them possibly being eaten as the crayfish may see them as food. This species seems to be less damaging to plants compared to other, larger crayfish, but there is no guarantee it will be plant safe. Furthermore, crayfish must frequently molt their exoskeleton leaving them soft and vulnerable for a short period of time while the new exoskeleton hardens. For this reason, mineral sources such as shells and mineral stones along with plenty of hiding spaces should be provided to protect them from being attacked by fish or other invertebrates and to help form their new shell. Because of their aggressive demeanor and occasional vulnerability, crayfish are best kept alone. 

Animal Data

  • Native to: North America
  • Breeding: Tank-raised by Imperial Tropicals in Imperial Tropicals, USA
  • Max adult size: 1-2"
  • Diet: Omnivore
  • Temperament: Aggressive
  • Care skill: Beginner

Tank Parameters

  • Temp range: 65°F - 82°F
  • pH range: 6.0 - 8.0
  • GH range: 75 ppm - 300 ppm
  • Min Tank Size: 5 gal

Shipping Info

We provide premium next day air shipping at affordable flat rates to minimize transit time for the health of the fish.

US East UPS Next Day Air $39.99
US Central UPS Next Day Air $49.99
US West UPS Next Day Air $59.99
Puerto Rico, Hawaii, Alaska UPS 1-2 Day Air Starts at $89.99
Canada UPS 1-2 Day Air Starts at $89.99
Florida UPS Next Day Ground $19.99
Local pickup Select at checkout No charge
No overseas shipping

Minimum order for all shipping is $50 for mainland US, $100 elsewhere. Saturday delivery available for an extra $30. Shipping to Puerto Rico, Hawaii, Alaska, and Canada is not flat rate and can be subject to additional fees based on location.

Important order and shipping info

Allow 2-4 business days to process and pack your order. You will receive a notification when it actually ships. Order cancellations are subject to a 10% restocking fee. Order changes cannot be made. However, if you wish to add to your order within 24 hours, you may place a second order with a request to combine the shipments. We will do our best to accommodate, however once an order is packaged and sealed it cannot be reopened.

Your order is covered by our Healthy & Happy Arrival Guarantee.

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Why buy from us?

Our Healthy & Happy Arrival guarantee

We've been packing and shipping live fish for over 50 years. When you buy from us, you get the healthiest stock and most experienced live fish shipping in the industry. So you know you won't be disappointed!

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Watch how we prepare your animals for shipping

Ordering FAQs

Will my fish look like the picture?

The majority of fish on our website will NOT look like their photos upon their unboxing. Fish change in appearance depending on many factors, including mood, age, gender, and social status. Fish will naturally lose color during shipping and may appear faded upon arrival. Pictures are used as examples only. Pictures may be of mature fish with full color or juvenile fish without color. We encourage you to research the species as much as possible prior to ordering in order to familiarize yourself with the various appearances they may take on. Many species have females that look drastically different to their male counterparts, and many juveniles will not have as much color (or different colors) as their adult forms. If you have questions about how the fish will look, please review their information and email us if you have any questions.

How do I know which fish can go together in my tank?

Research the product descriptions on our website and use Google search to help decide which fish can go together. PLEASE do your research and email us if you have any questions. Also, we have a very active Facebook group called Imperial Tropicals Fishkeepers where you can learn from knowledgable and experienced fishkeepers.

How do you ship live fish? Sounds risky!

We've been shipping live fish for over 50 years. we use specialized packaging and techniques to ensure their health. See how we do it.

How much does shipping cost?

We provide premium next day air shipping at affordable flat rates to minimize transit time for the health of the fish.

US East UPS Next Day Air $39.99
US Central UPS Next Day Air $49.99
US West UPS Next Day Air $59.99
Puerto Rico, Hawaii, Alaska UPS 1-2 Day Air Starts at $89.99
Canada UPS 1-2 Day Air Starts at $89.99
Florida UPS Next Day Ground $19.99
Local pickup Select at checkout No charge
No overseas shipping

Minimum order for all shipping is $50 for mainland US, $100 elsewhere. Saturday delivery available for an extra $30. Shipping to Puerto Rico, Hawaii, Alaska, and Canada is not flat rate and can be subject to additional fees based on location.

Important order and shipping info

Allow 2-4 business days to process and pack your order. You will receive a notification when it actually ships. Order cancellations are subject to a 10% restocking fee. Order changes cannot be made. However, if you wish to add to your order within 24 hours, you may place a second order with a request to combine the shipments. We will do our best to accommodate, however once an order is packaged and sealed it cannot be reopened.

Your order is covered by our Healthy & Happy Arrival Guarantee.

When will I get my order?

We need 2-4 days to select and pack your fish, you'll get a notification when it ships along with tracking info. It will arrive the next day or day after, depending on your location. See our Shipping Policy for full info.

What if my order is delayed? Will my fish be OK?

We ship hundreds of packages a week, and most are delivered without any issues thanks to our experienced team and premium air courier service. Our high-tech packaging is designed to sustain the animals a minimum of 2-3 days in the box, and in some cases longer, depending on the breed.

However, sometimes delays do occur. If this happens to your order, please document and contact us promptly following our inspection and documentation policies above in order to receive credit.

Can I change or cancel my order after it is placed?

Orders can be changed or cancelled within 24 hours, subject to a 10% restocking fee. Shipping is stressful for the animals and we cannot open boxes once they have been prepped and packed.

Can you hold my order until my tank is ready?

We can hold for a few days, but not beyond a week as inventory changes rapidly. Please only place your order when you know you will be ready to receive them.

What if my order is missing something?

First, please check the box and packaging thoroughly. If you are sure an item is missing please contact us immediately.

Do you offer pickup on local orders?

Yes! Just specify local pickup as your shipping option in checkout and we'll let you know when it is ready.

What if a fish I receive seems dead, sick or doesn't look right?

97% of our orders arrive without an issue. But if something goes wrong, no worries! You're covered under our Healthy & Happy Arrival Guarantee