stopping the growth of arowana

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Is this a serious question? If so, i can’t help but ask why you would want to stop the growth of an aro by placing it in a 50G?

But to answer your question, will it stop its growth? Yes and no, but thats because it will likely become deformed in one way or another from the restriction of being in a tank thats too small for extended periods of time and therefore not grow to its full potential size...

One must also remember the organs will also keep growing (to an extent) regardless of the size of the fishes body from my understanding, so it will potentially suffer other internal problems as well if it lives long enough...

Finally, i just also want to add I’ve even plenty of older asian aros over the years with really crooked spines or just weird body shapes from being kept in tanks way too small for them for way too long and those were still over 50G...
 
Get a short body aro and even then don’t put it in a 50g. Think u need to sell or give away ur fish if u can’t upgrade ur tank to accommodate the aro.
 
Given the questions this OP is asking in many other threads he's creating (and almost always in the wrong sub-forum, as this one is), I'm truly pained to think of him owning a fish like an Arowana in particular. Plz excuse my being blunt, but "Can i stop the growth of my arowana if i put it in my 50 gallons tank?" has got to one of the more asinine if not outright cruel questions I've read on this forum.

FranzAndrei, I'm really not trying to be mean, and I know you're kind of younger and still learning about the hobby -- I can appreciate that, we've all been there. But it's also my opinion that you really need to do some solid research before getting yourself (and fish) into big problems/heartache. With the wealth of easy to access info online (that many of us didn't have when were your age), there's simply no excuse not to do this. Honestly, did you do any research about properly keeping a silver arowana before acquiring it? If you had you wouldn't be asking such a question as in this thread.

Nobody's asked for it but let me also be clear on my opinion that Arowana in particular are not good fish for those newer to the hobby, especially if they don't do some proper research before getting one. I highly recommend to start with easier/smaller fish, then work your way up to more challenging species if so inclined (and have the ability to provide them with a proper home).
 
Like Fat Homer Fat Homer said it will stop growing but most likely it will be deformed and wont live long. Also when a aro feels like the space is not enough for them to move around, it will find a way to scape, its either breaking the glass of your 50g or jumping out of your tank. Trust me they will do this.
 
You might be asking based on having heard the theory that fish will grow to the size of the tank, but anyone who knows what they're talking about will give you various versions of the same answer to your question, which is No, you can't. It's sometimes true that the same fish in a smaller body of water will grow to a smaller size than one in a larger body of water, this sometimes translates to tank size, and this sometimes results in stunted fish, but there are limits to it, pure and simple.

Counting on being able to stunt a fish's growth is a bad strategy, very often doesn't work, and it's bad for the fish. The only viable and humane way to keep large fish when you don't have large enough tanks is to keep them while they're small enough, then move them on to someone who can suitably accommodate them when the time comes.

People have different conceptions about adequate tank size and there's room for a difference of opinion, but there are definitely limits, it has to be within reason. The basic principle is you need a tank that fits the fish, you just can't force a fish to fit a tank that's multiples smaller than what it needs. There are just so many reasons this is true.

Buying fish small, keeping them a while, then moving them on doesn't always work, some are niche species with a very limited market, making them difficult to rehome, but aros are popular enough ime that you can typically find a home for them. In fact, there was a time I kept aros myself and this is what I did for a while. I didn't try to profit, didn't try to keep them too long in my tanks, and didn't do if for very long, but for a while it was a way to experience a fish I liked.
 
I have a 50 gallon planted tank and have 10 cardinal tettras 4 corydoras catfish and 2 bushy nose plecos I think this is enough for a 50 gallon An arowwana needs a 300 gallon plus imo
 
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