Temperature Fluctuation

[Aquattro]

Originally Posted by whatcaneyedo

10º?? Is that Celsius or Fahrenheit? I've had heaters crap out on me and become stuck on or off causing one of my tanks to heat or cool by that much for a day. The fish began gasping and most of the coral closed up. What were you keeping in that system?

10F. I would go from 80 to 90 each day, all summer long. The first week, I thought I would have a stroke, I panicked every second of the day. It was a fully stocked mature SPS tank, and I only lost one species. I had several pieces of it, they all RTN'ed. Other than that, the tank was fine. I wasn't, but I got over it. Now, I don't recommend this, and I did end up getting a chiller, but 3 degrees daily will not harm anything.