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Depending on the species and its diet, they can live for at least a year or two, and some even longer. Aquarium crabs in saltwater tanks should not be kept if they become too large.
Yes, hermit crabs can be kept as pets. You can get the cages in about every store along the beach. One warning though; they really stink!.
yes
they can not because some tanks are not big enough
If it is kept clean.
Oxygen tanks should be kept in a well-ventilated area. Oxygen tanks should not be kept in the trunk of a car. "No Smoking--Oxygen in Use" signs should be used to warn visitors not to smoke near the patient.
Very few. Because hermit crabs need to remain stationary to molt they need to be kept with their own kind to avoid being cannibalized. Some owners do add rollie pollie bugs to their crab tanks as cleaners and that has proven to be quiet successful.
No. Hermit crabs live on huge beach colonies and are accustomed to working and traveling in huge groups. Crabs really need to be kept in groups (best case scenario would be in same species group). Crabs should be kept in groups of 3 or more.
Coal is kept underground in mines. When it is needed, it is dug up and shipped to power stations where it is burnt to produce electricity.Oil is similarly kept underground. After it has been pumped to the surface it is stored in tanks, tankers and pipelines for transportation to where it is needed.Natural gas is kept the same way as oil, in tanks, tankers and pipelines.
The Roman empire had a very large industry making fish tanks, before that, the Chinese had been raising fish in holding tanks for about a thousand years. Before that, people were probably building fish tanks since before we understood how to make fire.
A fish farm is a place where fish are kept in ponds and tanks and are used for breeding.