Just found these little things growing today, not sure how long they have been on there but it couldnt of been more then 2 days ago, as im sure you all know we inspect our tanks daily down to each grade of sand :grinyes: heres a couple of pictures, maybe some help if these are considered bad, thanks!:help:
PS. they are a light green/yellow in color.
PS. they are a light green/yellow in color.