Can you make a photo of them? Because if it is a soil mealy bugs - it is very unpleasant. They are whitish and they create a wax film on a surface of the water.

LETS HOPE IT IS TADPOLES...

Fungus gnat larvae? Mosquito larvae? When you say they are at the bottom of your reservoir, do you mean underwater?

No, I don't think so. I do have a minor gnat problem but these bugs can crawl. They have legs. When my reservoir doesn't contain water, I can see them. Maybe they are in the soil. I think they are some sort of mite. I do let the soil dry before refilling it with water.

There are some mites living in a soil. I do not think they are a problem. There are springtails http://www.reedsgreenhouse.com/springtail.jpg. As long as they are not SOIL MEALY BUGS - you can ignore them.

Any symptoms in your plants that have these bugs? Like pale or wilting leaves, not flowering or very slow growth? If not, hopefully that means it isn't soil mealies. Have you tried using a magnifying glass to look at them? Irina or others, correct me if I am wrong but don't mites spend their time in the plant and not in the soil? I wouldn't think to see them crawling around in the saucer, dry or not. Springtails, perhaps? (Which are pretty harmless.) Doctor Optimara page that may be helpful

I was looking in my reservoir and notice them jumping/ skipping on top of the water. They're in the soil, because every time I dump out the water when I do see them, they would come back. I believe that they crawl out of the bottom of the pot/ down the wick. There isn't anything wrong with my plants that I have noticed, but the thought of bugs there makes me paranoid. "They're multiplying." Sorry that it is blurry but this is the best I can do. It is zoomed all the way.

Find some imidacloprid systemic - Bonide makes it - and add to the soil - very sparingly. I think Walmart carries it. Amazon for sure has it.

Bonide Product 951 Systemic House Plant Insect Control 8 Oz.

Search om amazon.com