Tropical Fish Keeping - Aquarium fish care and resources

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dereks 04-22-2008 11:47 AM

Altering Color in Piranhas
I've heard you can darken piranhas as they get older by giving them a meaty diet of frozen foods, does anybody know a good frozen food for this?

bettababy 04-23-2008 01:46 PM

I've never heard such a thing. Piranah have such a varied diet to begin with, anywhere from smaller feeder fish, crayfish, even mice as they get large enough... (they like live foods) and in all my years of piranah care, I have never seen a specific type of food alter their color.

What will alter their color is stress, changes in water quality, maturity, and spawning.

dereks 04-23-2008 02:00 PM

Thanks for the reply. Do you think maybe the temp could change the color?

bettababy 04-23-2008 02:18 PM

Yes, temp fluctuations will also change their color... that is an indication of stress. The water temp should be stable at 76 - 78 degrees for piranah.

Gump 04-24-2008 05:20 AM

Both shrimp and krill will bring out reds and oranges.

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