Young 10cm-12cm arowana fin black

A

ard22

Feeder Fish
MFK Member
Nov 9, 2024
10
1
3
32
Can I ask a question here ? About my young arowanas ?
Question is
I have young arowanas the tail fin is not frayed but it is black colour on maybe 3 of them. Had them in the new tank for 2 weeks or so now
They came from a holding tank and not to sure if they had it from their or since been put into the new tank I did notice it a day after.

Is this normal ? Or is this early stages of fin rot?

Holding tank not looked after by me, has had some fights in the holding tank with the arowanas that I've been notified of aswell.

Since in new tank blackness or damages have not gotten worse.
Size 10-13cm
Tank size 1.5k - 2k litres (circle tank)
Parameters ammonia 0 nitrite 0 nitrate 5-20ppm since start.
Temp 27 degrees Celsius
 
A

ard22

Feeder Fish
MFK Member
Nov 9, 2024
10
1
3
32
Midwater said:
Yes.



No idea unless you post some pictures.

What types of aro are they? Some smaller golden aros have black fringes around their fins. It is a good sign. No way of knowing, we really need to see your fish.
Click to expand...
Oh thought I sent a video and image
 
A

ard22

Feeder Fish
MFK Member
Nov 9, 2024
10
1
3
32
Could not get my video to send but will try and get some more pictures clearer
 
A

ard22

Feeder Fish
MFK Member
Nov 9, 2024
10
1
3
32
Ah
Midwater said:
One of them has a slightly frayed tail, which will heal.

The colour is good.
Click to expand...
Ahh yep so most of what Ur seeing besides some fraying. The colouration is fine for younger arows ?
Thanks for your reply
 
Midwater

Midwater

Redtail Catfish
MFK Member
Dec 30, 2021
1,422
2,299
154
Thailand
You are going to have to separate them. As they grow, they will not tolerate each other.
 
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