Lumpfish can be bluish grey, olive, brownish, yellowish-green or reddish-brown colored. Color of the body matches with the colors of the environment and provides camouflage. Males are more vividly colored than females. Lumpfish are poor swimmers. Its small, but heavy body is not designed for fast swimming, so it spends most of its life on the bottom of the sea. It occasionally swims toward the shallow water and hides in the floating mass of seaweed.