Can you put food coloring in a fish tank?

[Dog Woman]

Will it harm the fish if you put food coloring in the water. And is there a certain kind you can't use. I was just wondering because I think it would look cool. Please don't criticize me. Thanks in advance.

 

[Joee]

Yes, it will harm them. It's sort of like air pollution to us. The reason food coloring is safe for us is because of the small amount of toxins compared to our large bodies. So when the coloring passes through the fishes gills, it will collect toxins and decrease it's life span or ultimately kill it. It's a good idea, but it's not safe for the fish, and if it were, it would cost a lot if you do your regular water changes.

 

[guppy girl]

NO u will kill the fish food coloring is even bad for us!! and fish cant even stand us pudding our fingers in the tank let alone food coloring! if u want it a different color get a backround it will make it somewhat red or whatever but dont put food coloring!

 

[YoungShyCareerGirl]

No. Unless you don't mind dead fish floating in the colored water.

 

[Bad girl 101]

I agree it would look cool, but if you add colouring your fish will die.

 

[May]

NO. It will poison the fish!
Please do not do it.

 

[God]

no. it will all kill them. If you but enough in the water to change the color it will kill your fish. Stick to dogs, woman.

 

[Sara]

Uh no. That's very unhealthy for the fish. and Food coloring is even un healthy for humans.