i have to say it is not the temperature if your thermometer is accurate. my tank was 84 today and everything is fine.
a two degree rise is nothing to worry about.
check out this info by a scientist. http://www.ronshimek.com/salinity_temperature.html
78 is at the low end of normal. no reefs in the northern hemisphere are anywhere near 78 degrees right now or even 80 degrees.
Carl
Carl
I found that the turf algae was trying to adjust and was depleting oxygen. Even my sand bed began changing color. I feel that if I would have had a protein skimmer I would not have lost all these precious fish. The scrubber is fantastic for corals or tanks with low fish counts. Heavy stocked tanks need a skimmer.