Mosquitofish are taking care of a large pool at my mother's house in
Southern California (which she couldn't maintain anymore), and we are
thinking about putting a pool cover on a portion of it. Would the
mosquitofish still survive if we cover 90% of the pool? We would leave a
section open, of course, so that they could still feed a little bit.
Although I'm not sure if the cover would make the water too warm or deprive
the water with not enough sunlight or larvae food to sustain the fish?