The organism shown above is a scud. An interesting fact about scuds is that they respond to light. They will try to avoid bright lights and are most often active during the night. What i have noticed about the organsim in my aquarium is that he tends to stick to the sides and he likes to swim up to the top of the water and just free fall down to the bottom.



This organism is a midge larva. An interesting fact is that, unlike most other insects, the blood of midge larvas are red. I have a hard time finding this organism in our tank. I think it died.



This organism is a snail. We actually have three snails in our tank, or should i say had. We believe our turtle mistook the snails for food and ate all three of them. From what we saw when they were alive was that they stuck to the sides of our tank and just moved up and down the sides. As they move they leave behind slime and that is how snails are able to move on walls and even upside down.