My 4G pico in my office temp is at a low temp due to the powerful aircon.
Previously, the tank was at 24'C but after changing my lights from PL to LED, and removing a small powerhead,
the tank temp is now at a whopping 22.5'C - 23'C.
I have another small tank setup with (water from main tank)which has a higher temp due to its smaller volume, at about 25'C. After transferring some mushrooms into the smaller tank, it seems to have expanded more.
Could this be a result of low temp issues? What is the lowest optimal temp a reef tank can go?