Patreon: https://www.patreon.com/danielhiteshew Aquatic Plants for sale: firstname.lastname@example.org Here’s part two of this two part series on aquarium filtration, and whether or not you can have too much. Today’s video focuses on the nitrogen cycle and biological filtration. Biofiltration Biofilter source Everyday Fishkeeping More
This invention is quite impressive, it's awesome you could pull it off.
very interesting project
Станислав, ты умничка. Успехов тебе во всех начинаниях 👍