Hey everyone well i have been interested in getting ray or shark in my 100 gallon tank, but as far as I know there are no rays or sharks that can live in a 100 gallon tank for life. Are there any?
I think the smallest you can go is a freshwater ray in a 125, and even then some people say that's too small. Everything else is going to need something bigger eventually. For most saltwater things, it's going to need to be a LOT bigger.