Crabs

[morgan78]

hi everyone,
i want to buy some red clawed crabs for my tank i only want crabs in their but i was just wondering if i need an airstone or diffuser to oxygenate the water any advise would be grateful thanks

 

[three-fingers]

You don't specifically need an airstone, but you do need a cycled biological filter of some sort, this will provide adequate aeration anyway .

Red claw crabs do need a decent area of land to come out onto though - preferably more than half of the tank, and they need slightly brackish water. This means using marine aquarium salt - the stuff used in reef aquariums, not just regular rubbish 'freshwater aquarium salt', which is just over priced sodium chloride.

Kept in any other conditions the crabs live a much shorter life, and very often have complications moulting their skin. If the water is too acidic, you will notice little holes in their carapace too.