Never, But you would still need to drink cold water
Really cold water! Cold fish! And friends!
You would need two vases with warm and cold water with the same species of flower and amount of water in each.
A pool. Water. A swimsuit. Time
plants need cold water to survive
For UK diving you may still want to vary the thickness of your gear, depending on the water temperature, but for footwear, thicker is better than thinner as it will get a rougher time than most of your suit. I would say 3mm at least.
Goldfish are "coldwater fish" their comfortable temperature range is 55F to 70F. The stimulus to make them breed is when the temperature rises to over 65F.A gold fish needs cold water.
Of course the answer is you need to ask a doctor. The big concern I would have is not so much the actual diving, but the weight you are going to have on your back wearing the scuba gear in and out of the water - which will be greater than 50 pounds.
because when you are cold you need hot water to warm you up
We need power to live like we need power for heat to get water run your car keep things cold we would always need it
Example sentence - The water in the lake was cold and we would need to ease ourselves into it.
Standard diving equipement, with the use of a drysuit instead of a wetsuit. A battery operated suit heater would be optional.