As far as I know, this is because cold water is heavier than warmer water. Hot/Warm water rises to the top, while colder/cooler water sinks to the bottom. The fish will go along. improved answer: "Even if the above answer is true, which i believe is not, it still wouldn't matter at all: it wouldn't actually have an effect on the fish. There is no responsible way to answer this question with the provided information. There are multiples reasons why a fish would be lying on the substrate. My first idea would be that the fish is having respiritory trouble because of poorly oxygenated water. Which is more of a concern in cold water than tropical."
too look for food and finding some food to eat
She isn't. She's doing just fine.
It's dead... Sorry.
Fish sleep on the ground.
Aside from the Latin, the most common term for lying on your back is supine.
Lying supine means lying on your back (supine is on your spine).
ummm your fish is dead....sorry.......
NO, if your fish is lying down it is probably dying or dead.
Maybe their sleeping or they are dead.
When I went back to my favourite pond, I was disappointed to see that all the water had evaporated and all the fish were lying dead on the dry ground.
The dorsum is medical terminology for the back. Hence, the dorsal position is lying on your back.
Stop lying to him.
When a fish is floating on it's side, on the surface of the water, it's probably dead.
NO if he was a lying boyfriend that's not going to go away