optimusprime said:just as long as its not more than 10 or so dont sweat it.
Those are springtails not gnat larvae..sm-90 ,,,,Cheeba said:10 is 10 too many. Eliminate the adult fungus gnats using the yellow sticky tape and use Gnatrol to eliminate the eggs in your soil. The most damage will be done by larvae eating your roots. Check your top soil to see if any damage is done (brown decaying roots).
Do a search or use this thread as reference
http://www.icmag.com/ic/showthread.php?t=1745