Hmmmm. So I have that 10 gallon outside on an old stand. It has the water hyacinth in it and the filter is running. I have no space for it inside right now but would it be safe to have an aquarium outside with a fish in it that could eat any mosquito eggs that end up in it. What type of fish could do that? I don't know what tank to move the gourami to. You know the tanks I have. What would you do?