Yes they need plain water or they will die because they can't breath in the water.
If someone made the air you breath a different colour by adding a dye, do you think it would do you any good? Any impurity in a fishes water is likely to kill fish.
NO! Hermit crabs can't eat food coloring. the chemicals in it could kill them.
Sugar, gelatin, and food coloring.
i would not recommend
You first kill somebody drain their blood and mix it with water and there you have it, red food coloring.
it can possibly kill your fish so mak sure there is no ash in your fish food.
no
Absolutely none. Fish take food into their mouths and taste it. If they like it, they swallow, if not they will spit it out. The colour of the flakes has no bearing on what the fish takes in and tastes in my experience.Read more: What_effect_does_food_color_have_on_the_amount_of_food_a_fish_eats
they will but only when they die. The fish gets darker every time but doesnt change until then
no there is not DNA in food coloring
i think
food coloring doesnt stick to food it obsorbes into food
Blue food coloring