Diy filter

[Bowhunterking]

I decided to make a filter for my crayfish minnow tank. I took a bigger Gatorade bottle, and a vitamin water bottle for the body. I cut the bottom half of the vitamin bottle of and the top of the Gatorade bottle of. Put a generous amount of carbon in the bottom and put the small bottle in the big one. I packed filter cotton between the big and the small bottle. I put cut up straws in the small bottle. Then used the air stone for water circulation. Seems to be working pretty good.