My Opaline Gourami died this morning :-( So I rushed to the shop and bought 30 neons and 6 Harley rasbora as I wanted to add some colour to the tank and increase the Harleys, Drip acclimatised them for 2 hours Then added them, wow the neons have spent the last ten minutes going nuts at the bottom of the tank! Is this normal for these little fellas or do the need psychiatric evaluation ?