The most common problem with fish keeping is poor water quality. Fish get sick if their water is not clean and of the right parameters. You would get sick if the air you had to live in was of poor quality your fish are the same. I would try a water change or two and I'd make sure the temps and other values are correct when doing it.
It is the size of the food fish that matters. Even a baby Jack Dempsy will eat any live fish small enough to fit into its mouth.
Any time you put a Jack Dempsy with something it is a risk I have 2 with parrot fish and all other fish and they are fine. Just make alot of hiding spots and keep an eye out
Jack Dempsey's need the same water as any other tropical fish, no salt, just warmish water (72-77F would be ideal) with a few drops of water conditoner.
he want to be like Michael Jackson
A black jack is any of various species of fish or plant, including Caranx lugubris, or the blackjack oak, Quercus marilandica.
The Jack Dempsey Fish came after the man Jack Dempsey. The fish was named after him because he was a boxer and the fish are known for fighting.
A jack fish
Jack Dempsey - fish - was created in 1903.
your turning into a fish
your fish is turning grey due to lack of protein and lack of proper diet.
Because your turning into one!
if there is a black out and you do have a fish tank you should be fine an less you have a chinease fish or any fish that is in the red mark for fish