We are having Extremes in heat this year...even hotter than normal. Temps are hovering at 100+F. My 125 G pond is under a patio cover in shade. However, pond water temp is now at 85F. What can I do to cool down the water and help the fish. Is it ok to float frozen bags of water? Perhaps some large blue ice blocks? I have a spitter and added an air bar for more oxygen. Suggestions? There are 2 commons and a Shubunkin In the pond. I am so worried.