自作流動式ろ過＋砂ろ過

This time, I tried making a flow-through filter. Regular filter media can create dead water areas, accumulate dead bacteria at the bottom, and accumulate nitrates, so regular maintenance is required. I wanted to make better water as easily as possible! So, I tried making a flow-through filter. I tried six different types of filter media and chose the one that circulated the water the cleanest. I never expected it to be that material! It constantly supplies oxygen to the bacteria, activating them, and constantly rotating, preventing dead water. It's all good, so I'm going to try it out and see how the numbers go over a month. ^ ^ #flowthroughfilter #sandfilter #KamuiJAPAN #medaka #Koukihime