How many hermit crabs can fit in a 10 gallon aquarium?
I have pondered the question for a long time. Lately I have concluded that there is no easy way to answer that question. It depends on several factors, which will be different for each situation, unless a standard tank developed with the same items, the same dimensions. Because this is not the case for the majority of land hermit crab owners, perhaps we need to revisit the rule of thumb and bring it into line with the 21st century. Firstly, let’s look at the Gallon, (or 4 Litres in Aus-speak). The Gallon is a volume taking into consideration length, width and height. Since most crab tanks are one level, and hermit crabs mainly use the surface area of a tank, is a ‘per Gallon” guideline appropriate? Unless you use levels so you are doubling or adding to the surface area of your tank, the amount of Gallons is not truly relational to the surface area. You could have a 50 Gallon tank but the surface area is actually very small because it is a fish tank, with a tall vertical height for the