About 3 months ago I planted a 2ft x 3ft container with grass seed that I attained thru turtle cafe a couple years ago. It has grown great but since it has warmed up a little I noticed a few little "nats" flying around. Upon closer examination of my grass try I found that there are a couple dozen of them living in there. The grass doesnt seem to be effected by them, but I want to get rid of them. Is there anything I can do in order to exterminate them without either a) throwing out the grass tray or b) using something that will contaminate the grass and make it harmful for the tortoises. Any help is greatly appreciated.
Thanks,
Grape

