We have had this 10 gallon starter tank for over a year and apart from a couple all fish are well and in glamerous colors (Serpae Tetra, 5 off). I only recently read somewhere that they prefer calm waters; our filter pump keeps the water at quite a current with some parts near the outlet inducing air bubbles. Should we reduce the flow to calm the water down? Should we switch it of during the night? We will never be pros but would like to witness the odd smile on their faces...*twirlysmi THANKS!