How would I lower the temp so much long term, I live in Florida and I keep my tank at 78 to 80For several months keep a male and female
(You can more than 1 of each if you wish)
At temps between 55 and 62 degrees or so
(Don't really feed during this period), then let the temps rise to normal, you can start feeding again around 70 degrees, this induces spawning in bullheads and many other fish