While cleaning and replanting my pickerel tank last night I bumped up the temp for the plants, but this was an older heater and has no set temperature marks you just king of got to guess I wanted it at about 74-75. I walk upstairs to find my pickerels belly up and the temp was at 86. I fell so bad as this was completly my fault I will def. replace that heater with a new one or go without a heater for my next pickerels.


