What's wrong with this Aro's fins???

  • We are currently upgrading MFK. thanks! -neo
I dont think someone who keeps a silver in a 55g really has the authority to diagnose anything.

To the OP, its definitely the start of fin rot. I would up the water changes and start a melafix and salt dosing.
Ya ok u win also I'm want to upgrade but it's hard since I'm not an adult and my parents limit everything check out my other thread plz because they want to move my arowana to a 125 which is still too small
 
The rays/bones stick way further out then the web of the fins.... Didn't know if this is a fin rot?

I have a hard time believing it's malnutrition/poor water change regimen. This thing eats more and is growing much faster then the other Aro here, but the others fin rays don't pertude. The other Aro may get more pellets but that system doesn't get near the new water this guy gets...
I had this happen with some angel fish I got a while back. The Rays were over twice the length of the fins. I added salt and kept them seperated with the lights off for a few weeks and they healed just fine.

Just fallow what Malte81 Malte81 did and he'll be fine.

What are the tank mates?
 
High quallity food is also important.
I feed mine crickets, shrimps and pellets.
Feed the crickets with vegetables and fruits then feed the aro with the crickets.
You can also buy vitamine fluid.
Put a few drops on the shrimps or the pellets and feed the aro.
 
This fish has already been through a roller coaster. It landed in the tank after getting seriously beaten up by one of the Tiggers here. On top of that the system it's in just went through metro and Prazi treatments for the rays in there, but along with that came lots of clean water from flushing the system prior to and during the meds.

I don't much care for Melafix cause the foam the moving bed makes but salting and upping the temp is no problem. Only tank mates are some rays below a Brycon (Melanopteru sp. very peacefull) and the biggest weanie of a wolf I own here. The Aro is king of the tank and always eats first. Tank is 6x3x1.5 system is around 600 gallons, drip fed.

The diet here isn't terrible, the rays that live below the Aro breed. Lots of shrimp and cut fish, few kinds of Hikari pellets. There's more then enough food cause of the rays, Aro gets however much he can eat at least once a day. The tank probably gets at least 3/4lb frozen and a handfull of pellets daily.
 
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I had an aro arrive from a vendor looking that way. I didn't do anything special and it cleared up.
 
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Loos like if you let him heal up for a few weeks with higher temp and salt he will heal up just fine. If the fins still loo a little ragged just pull him out and trim the fins and he will look really nice once they grow back in
 
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If it's not a tank mate picking on it it's 100% stress. These things get fin rot incredibly quickly during shipping or other transition, it's crazy. Good thing is they are pretty hardy and do well growing stuff back. Good parameters and some basic anti stress measures and it will be back together in no time. Salt will help too. Don't think any meds are necessary, I find they stress the fish more, plus knowing you I think your water is just fine I think it's just time.

Since I am a witness to Murphys law on occasion, just do your best to make sure it's eating because I have heard of instances of arowana basically spontaneously dying in short periods (much shorter periods than they are known to go on their trademark hunger strikes for) of continued distress to the point of going off food. I'd say as long as it's eating what you see seeing is not atypical.
 
i would add uv, that looks pretty tore up, less its from tank mates, but looks like fin rot to me.
dirty water.

Check ur pH, Nitrates and hardness, i'd start doing small water changes and invest in UV. if you have a higher pH can cause stress leading to infections like that or too low, high nitrates, any ammonia, poor diet, aggressive tank mates, too much light. Can cause stress and lead to infections.
 
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