What's in my orange springtail enclosure?
Hey, everyone. A few weeks ago, I bought these orange springtails at an expo. I've since put a few in multiple terrariums, but also kept some in this little petri dish. I've definitely seen them multiply, but I've also seen an abundance of what I assume are white springtails. However, today I opened the lid to give them some fish flakes and I saw multiple of these tiny black bugs. Are these some sort of gnats? Should I be concerned? Will this mean they'll take over my terrariums I've put the orange springtails into as well?