Yeah, dung, manure is too much organic nutrient. It’ll cause anaerobic condition quickly. It might be easier to get top soil from your backyard.
Manure amendments are used to give high yields for fruits and vegetables. Definitely not needed for aquatic plants.Thanks! Here where I live it's very common to have cow manure added to soil.
Yes, I was using the prepared soil, but it was also smelly. Probably soil cant be used in aquarium? Thanks!