ok, i have a relatively small tank that will not be able to accomodate a skimmer. i was wondering what kinds of soft corals would be appropriate for a tank with a pygmy octo. the line of thinking was to use macro algae and softies (mushrooms, xenia, and zoanthids) to help utilize exta nutrients. additionally since octos apparently need higher concentrations of oxygen, the photosythesis should release oxygen into the system. additionally i'm running into temp. issues. i come home at night and the tank is about 84 F. what is a safe temp for tide pool species of octos?