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.
She is probably pondering something. If she's busy with something, it might just be something she does when she concentrates (I know I do).If you're talking or with each other and she's looking at you, it could be a little way of flirting (again, I know I do). Biting the lip, centrally or at the side, is often a sign of anxiety. Usually, this is the bottom lip (especially if the person has overhanging top teeth). This may be a â¦ habitual action and people who do this, will often repeat the move in predictable situations.