How come my arowana

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I have the same problem with my new pair of aros couple of days ago. My problem is I have a bigger aros in the left end of tank, the new pair of smaller aros was being attack by the big aro when swim to left. So they kind try to "push" right end of glass. What I have done is I moved the big aros into a 75 gal, and let it stay alone, it is 9 inch, 75 gallon will let it live for a long time. The new pair of aros are swim good and happy now.
You situation is probably the aros are shock from something in the tank. You can check on that. If this is not the problem. You can check the water parameters. or use some Stress Coat to help fish calm down. But, my personal experience, StressCoat is really very week, effect of it is very light, you can use it regularly. But if the aros are really scared, frighten, or shock, you may need to use Arowanas Stabilizer, its very effective.
 
What's arowana stabilizer ? What's the brand name thanks


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It is a arowanas medicine, use when you want to perform surgery on your aros, transport your aros, or add new aros. It will help aros calm down, and help it recover from shock. I used Ocean Free Stabilizer that specially produced for Arowanas.
 
Water levels
Ph came at 7.0-7.2 nitrite 0 nitrate is 5.0 ppm doing Amonia right now

Really? So it's good? My Amonia is a bit high

Well there is your problem youve placed your arowana into an uncycled tank. How high is your ammonia? Need to keep ammonia and nitrite levels under .25 ppm so better start doing daily water changes.
 
I did a water change yesterday took out 5-6 inches of water from tank and dosed prime


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IMO the tank looks a bit narrow, I know the fish can still turn around but it certainly doesn't look ideal to me. The behaviour doesn't seem abnormal or worrying to me though, my green aro used to do that and I've seen other aros do it too. In fact my 13" black was doing something similar in my 2000L tank when I first added it, maybe they just need to get a feel for where the invisible boundaries are?

If it doesn't give it up after a while and you start to notice marks on the front of the lip from constantly rubbing on the glass I'd be concerned. Perhaps a background and substrate might help?
 
Add a background put some plants in there. Also adding an expensive fish into an unicycled tank = fail. You should have gotten a bunch of cheap fish and threw them in for a month or so to help cycle. What is the ammonia level? Behavior doesn't seem abnormal but tank does seem narrow. You need at least 24" wide for that aro. So keep that in mind for when you get the bigger tank
 
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