zach119
Aquarium Advice Activist
i filled my tank yesterday is im sure i told you on other threads and i had my heater on 76 and it heated it up nicely in a short time then i looked again and it was at 90 and has been stuck ever since and i turned the heater off but theres no fish in there only water so thats good at least but how the heck do i get this temp to stay under control??? also i have been leaving my light off cuz i thought that was the source but its not any other suggestions and how does a chiller work?