03-16-2010, 02:31 PM
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From that description there was something wrong with the angel, whatever the cause. If stress from a multitude of different un-related things can cause cancers and diseases in humans, it also will in fish. Which is why I keep harping everywhere on using natural habitats as the best guide to healthy fish.
Which leads into the lone angel--I would get 2-3 more. In which case I would not suggest ram(s) as well, simply because this is a fairly new setup and it needs time to mature a bit before stocking levels can be increased more safely. And the angels will grow, as will the tetras and others, so plan ahead.