Hi, I used this site a while back as a beginner but havent used it for a while as all my questions were pretty much answered perfectly. The thing is I have a mature jewel rekord 70 (70 litres) and so far i have stocked 2 kribensis and 3 tiger barbs. They are all pretty happy together and i rarely have problems. I wonder if i could possibly add anything else to this tank as at the mo it seems pretty bare when the fish are hidden in caves and behind rocks. The tank stats are always pretty perfect aswell. I would probaly not add these fish for a while as i want my fish to mature abit more and grow larger (still pretty small at the moment). Could i add anything to make my fish put on weight and grow quicker? Sorry for the silly questions im still new to the hobby really lol. Thanks