Serrasalmus Irritans growth rate

[Yohanon]

Greetings folks, I am new to this forum. I have a juvenile (1 1/2") irritans piranha in a 75 gallon tank. Very cool fish. Can anyone give me an idea of what kind of growth rate I can expect its first year? The only past experience I have with piranhas is with pygocentrus nattereri, which would reach 6" their first year.

 

[Yuki Rihwa]

I never own irritans so I'm not sure how big he getting in his first year but generally Serrasalmus species grow very slow.

 

[SandNukka15]

How can u tell ita an irritans if its only 1.5 inches?...

Really slow it will take it a year just to hit 4-5 inches and then prob .5-1 inch a year after that

 

[Yohanon]

How can u tell ita an irritans if its only 1.5 inches?...

Really slow it will take it a year just to hit 4-5 inches and then prob .5-1 inch a year after that

I will try to load a pic

 

[SandNukka15]

Pretty much all baby serras at 1.5 inches look the same so u cant tell until it get bigger

 

[Yohanon]

It is an irritans according to Pedro at aquascape online. Wild caught in the Orinoco basin in Colombia near Venezuela border. Time will tell, I suppose. Very aggressive little fish. The tail looks identical to irritan photos that I have googled

 

[lightsout]

Upload a close up of the fish, Id like to see the markings.

 

[Yohanon]

Upload a close up of the fish, Id like to see the markings.

I will at the soonest opportunity. The only camera I have is my phone, and image quality is of a dubious nature

 

[Yohanon]

This is the clearest image I could come up with"Quid quid latine dictum sit, altum videtur" (Anything said in latin SOUNDS profound)

 

[lightsout]

You need to step up your picture game....