Most people keep discus in 400 litres and more so that they can grow big. As a baby, discus will secrete a hormone that stops them from growing. If your tank is too small, the hormone will build up and you will end up with stunted fish. Also, a bigger tank is easier to keep stable.
Definition of lipâsmacking. 1  1 : causing the lips to smack in eager anticipation or in delight lip-smacking recipes lip-smacking desserts. 2  2 : excitingly sensational or provocative fervid, lip-smacking stuff â Alexandra Jacobs. 3  3 : markedly gratifying boasted with lip-smacking satisfaction â Sports Illustrated.
Drifting...relaxing...deeply relaxed...serene...calm... Sometimes biting the inside of the mouth occurs because the surfaces on inside of the lips and cheeks do not feel smooth. The rough surfaces are caused by biting the inside of the mouth. Biting the inside of the mouth causes this problem rather than relieves it.