That is the question. For freshwater tropical fish which is best ? I would imagine in their natural environment they have gravel but I have seen it mentioned some fish, such as Corys prefer sand. What are the pros and cons. B)
). Only one bad thing is that plants don't tank as well to it.
Personal choice. Many happy fish live in tanks with gravel. There is a risk of it being swallowed, as stated but tbh thats the first ive heard of it..
