adult non-breeding group in 7foot 300gal

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steenmillinder created the topic: adult non-breeding group in 7foot 300gal

Hi :D

I have 4 oscars reaching 25-30 cm, they became more rough towards each other approx 6 months ago but nothing too bad(for now) I like the interaction between them and I have kind of deluded myself into believing that the aggression has plateaued for now. They are not going to breed in the tank(by design) because of my jag and the red devil but what can I expect from them when they get older? Can I keep a group in a 7foot 300gal tank if I intend to keep them the rest of their life and not let them breed?

Thx&cheers

(p.s. any good links on their life in the wild?)
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Suprd71 replied the topic: adult non-breeding group in 7foot 300gal

Hello and welcome to OFL. What would concern me the most at this time is the Jag and RD. At any moment either of those two could shred all the Oscars. Very territorial, very aggressive are the Central Americans, and Oscar, despite the size is no match for either. I would say that 4 Oscars in a 7ft 300 is about maximum, making the Jag and RD into an over stock, plus the mentioned mismatch.


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steenmillinder replied the topic: adult non-breeding group in 7foot 300gal

Thx :D I've always been fond of the oscars puppy-like persona towards the "feeder-person", but I've always ended up selling them again around 20-25cm, and compared to having kept them I know surprisingly little about them(and how they live in the wild) compared to the other aquarium creatures i have kept.

The jag and RD are (I have had several during the decades I have had tanks) extremely mild natured I keep them as "police" fish they actually break up a fight if the oscars go from showing off to jaw lock and I would be ready to take them out of the tank, I have never seen them harass the oscars(I am aware that this is way more the exception than the rule for any parachromis or amphilophus).

I hoped for more than 4 and have them maintain some sort of "group dynamic" like they can do when younger but I did suspect them to grow more anti-social with age/matureity(also the reason for this post). So basically it's more of a breeding pair in each end of the tank and hope for the best?(i dont have the stomach for 2 CA/SA cichlid pairs) or optimally a single pair?

Thanks a lot for your input, back to the drawing board for me(as a "group tank" they compete with Channa pleuro for the tank(oscar group not being realistic anymore) and as a "single breeding pair tank" they compete with umbee or trimac or one of the parachromis' for the tank, hard one...)

And again, thanks for the knowledge ;)
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DRACO replied the topic: adult non-breeding group in 7foot 300gal

keeping more fish in one tank reduces the chance of spawning/breeding. i am keeping 12 pcs full grown oscars
and they never spawned at all!
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