Hey does ne1 no roughly how fast common plecs grow? I know its based on food, parents etc but does anyone have a vague idea of x inches per year? It's just I'm poor at the mo, but want to upgrade from a 20 gallon tank to a 400 litre (over 100gallon) one. Its just I have to wait till after my exam results, and if I mess them up, I want to know how much time I have before he gets too big! He seems about 3.5" from head to tail tip. Thanx