These species are almost impossible to keep and should be left alone

	These species are almost impossible to keep and should be left alone.
	Most individuals of these species do not adapt well to home tanks, usually not eating and dying off.
	These species are moderately hardy, with most individuals acclimating to home tanks if special care is provided.
	These species are generally durable and hardy, with most individuals acclimating to home tanks.
	These species are very hardy with almost all individuals easily acclimating to home tanks.
V	These species have spines or barbs that carry toxins with varying degrees of toxicity.