I would say it can be done, it would just be infinitely harder to maintain a healthy environment.
Three types of filtration: bio, mechanical and chemical. People usually use a combo of these, but I don't think there is any rule that says you HAVE to use any one in particular.
Because those tanks are very, VERY understock such the the nitrifying bacteria growing on the substrate, deco, tank walls is sufficient. Heavily planting of the tank also reduce the amount of nitrifying bacteria required.
Therefore only mechanical filtration is required
Because those tanks are very, VERY understock such the the nitrifying bacteria growing on the substrate, deco, tank walls is sufficient. Heavily planting of the tank also reduce the amount of nitrifying bacteria required.
Therefore only mechanical filtration is required
Not so fast, my friend.
My 55 is plum full of Mbuna and runs without a lick of bio specific media.
Sand, rocks, and glass is the home for my bacterial colonies.
Been that way for quite awhile.
No ammonia/nitrite, only the steady climb of nitrate untill a WC.
