HELP: my piranha's wont eat

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J

Jreeper

Jack Dempsey
MFK Member
Feb 7, 2013
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Jordan
hey guys i have a 15 red piranhas in my 500lt tank they are around 15cm long i have them for a 8-9 months

the problem is they don't eat they haven't eat anything for a week now in the past they use to eat normaly a fish fillet or some cow liver but now they don't eat anything
they are scared and cowrdly run off in the bottom of the tank always afrraed of me and other people when i give them food they run away and they are very hungry the chase each other and some time bite each other but when i servent a food they wont eat i don't know why and also they afrraid of the tank light when i turn the light on they run away and hide in the bottom

plz help how can i make them back to eat
and how i can make them to not scared from me

sorry for my bad english i'm not a native speaker
 
where are you guys i really need help my fishes gonna die and neither me or you want that to happened cuz in the end they are a living creaturs
 
Strange that they've just stopped eating! Are all the water param's ok? Temp ok?

Have you tried defrosted prawns/shrimps? Mine love that
 
That's a lot of piranha's for 500 liters as well. First step would be to make sure the water is ok and the filtration is up to the job.

Maybe bring a sample to a LFS to get a second opinion on the water as well.
 
Do a 50% water change immediately...
Add a live fish and off the lights and make them feel comfortable... Did u add anything new to the tank like decors... They are skittish fish... Someone told me that if they are hungry means they will hunt and eat the weeker fish in their own group...

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the water is very clean and transparent there is no Impurities in it also the filtration se perfect i have a 2500 lt/h external filter and i have a 2000 lt/h overhead filter that i make it with my self and i have a 1600 filter in side the tank so its a perfect filtration and i have a carbon in the tank and alot of bio helpers

the ammonia is 0 and the nit is 0.01

i don't add any thing in the tank no decor or any other fish

and baji that what i'm afrraid of they can kill and eat each other and i saw them bite another fish from the back
and today they eat just a little of fish fillet

i have tried the shrimp in the past they don't like it

any other solution ?

thx alot guys
 
well i do 25% of the tank water every week

i have other tanks and i had a green terror (20cm) and the green died so i put it in the piranha tank so they can eat something along for 1 week without eating and finaly after 10 hours they ate the green terror dead body

so they get somthing to eat but the problem didn't solve :(
 
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