5 Thai Micro Spider Crabs

The Thai micro spider crab is from one specific river in Thailand. They are a very small crab that may reach 0.6″ across in total. They should be kept in groups of 3 or more. They love heavily planted tanks and will hide in driftwood and plants. Most are a grey color with some brown spots, although there is some variance in color. They are omnivorous and will love some meaty treats. They will need sinking foods and would relish a constant supply of natural algae to graze from.

Like dwarf shrimp, Thai micro spider crabs can be quite shy. They need plenty of hiding places to feel safe. Adding decorations and plants (floating plants with long roots will be especially appreciated) is a good idea.

Thai micro spider crab care and requirements are relatively similar to those of dwarf shrimp. A large aquarium is not needed for these crabs. A small colony can be sustained in an aquarium of at least 5 gallons (19L), as long as it’s fully cycled and heated. This being said, because they don’t respond well to low water quality, keeping them in a slightly larger tank might be easier. A larger volume of water will be easier to keep stable. Find out more about Micro Spider Crabs in The Shrimp Farm Academy.

A relatively recent addition to the aquarium hobby, Thai micro crabs are quickly gaining popularity. They are appreciated among shrimp keepers for their very peaceful nature and similar requirements, which make them a great option if you’re looking for tankmates for your (dwarf) shrimp.