HI all, I have a 600 litre tank, so a 6x2x2, and have 10 tiger barbs and 2 clown loaches... I was watching them today and saw that they have all been schooling together? the clowns are probably 2/3 inches and the tiger barbs 2... I was just wondering... is this normal behaviour!? I thought clown loaches were bottom dwellers but mine seem to be swimmin where ever the barbs go! pretty cool to watch but yeah... just alittle odd hey! any opinions?