100 deg? The tub must not be buried. My 18g is buried and when it got to 96 deg a few days ago, its water was at a steady 79. I've kept feeder goldfish, rosy red minnows and 4 female guppies and their fry with great success.
If you think 20 gallons is giant, what would you call a small 100g container pond.. Ginormous?
If you think 20 gallons is giant, what would you call a small 100g container pond.. Ginormous?