I have a little 5G that I set up as a soil-substrate low-tech tank. I introduced a few snails and a while bunch of plants to get it going. Snails are doing great (reproducing like mad- I can count probably 20 baby tiny pond snails without even trying. It's moderately to heavily planted.
I noticed today two interesting tiny critters...
one is a tiny white worm that crawls on things... I'm assuming some kind of nematode or planaria, all my research says they're harmless but signal a problem. No suprise there, the tank does have moderate nitrite levels. I'm waiting for the soil to establish so no suprise there.
There's also this other little critter... kind of reminds me of a gnat, only underwater.
Tiny dot... tan/ lightbrown... They crawl on the sides sometimes but normally swim... and they swim fast for they're size. I'm assuming they're just some little harmless critter, so I'm not worried but I am curious.
I don't neccesarily even want to destroy them. I watched a snail eat one of the wormy things... have no idea how he caught it. As far as I know he just kind of stumbled on it.
What are they? And don't ask for a pic, I can tell you now there's no way to get a good shot of either one.
PS I'm assuming they're planaria and nematodes... am I right?