Had mine for 16 years till we went on vacation and the power went out, when we had a summer at 116 on a weekend. water temp was 98 and not sure for how long. All my clowns 6 of them died. we got when the kids were born. We had a pair of Perculas, Oscellaris both with wide bars and a regular pair of Oscellaris. All my other fish die, except for a pair of blue damsels that were there just waiting to greet us when we came back.