I agree. The paint is toxic for crabs. Natural shells are so much prettier anyway. Painted shells are gaudy. Water conditioner is available very cheap for adding to tap water to remove the chemicals that they don't tolerate. My crabs get fresh and salt water bins for drinking and bathing. They need humidity, not enough to drown in. They need temps of about 70 degrees. ZoeKaya knows what she's talking about. Research is essential to the care of these cute critters. Wire cages alone are not the way to raise them. My, I did ramble on, didn't I!?