Woah. They're practicly right on top of one another, that's astonishing. Are you witnessing alot of aggression between them, or is the sight barrier broken enough that they don't realize?
What i find really impressive, is the variety of fish kept in this pond. From what i have noticed in the past, you have or do keep everything from Dovii, Umbee etc. through to Gourami's and thing's.