Jaguar cichlid with 2 oscars in a 125?

[Kelly_Aquatics]

Hello I was wondering if I could keep a Jaguar in my 125 with two oscars?
will this be over stocked? I do 1-2 weekly water changes and have two canister filters a rena and a eheim
could this work? if so would a delhezi bichir work too?

Thanks!

 

[HybridFinatic]

Yes that would be very overstocked. Some may say two oscars in a 125 is too much but if it’s currently working for you and you are able to attain proper water paremeters then I suggest you stick with your current setup.

 

[Kelly_Aquatics]

ok thanks!

 

[Gourami Swami]

In addition to the bio-load, managuense (jaguar cichlid) are on a different scale of aggression from the oscars; very likely to kill any tankmates in a 125 once it gets to adult size and becomes dominant.
So I would just keep the two oscars. A bichir would not be a problem compatibility wise, but will add to the bioload which will already be high. So if you do decide to get one, keep that in mind. Oscars are prone to HLLE/HITH in poorly maintained water; I try to keep nitrates below 20ppm in my tanks, lower with sensitive fish such as these.

 

[Kelly_Aquatics]

My Nitrates are a little below 20ppm closer to 18ppm and nitrites are at close to 0ppm I test water regularly and do 1-2 50% watr changes weekly

 

[duanes]

In addition to the bio-load, managuense (jaguar cichlid) are on a different scale of aggression from the oscars; very likely to kill any tankmates in a 125 once it gets to adult size and becomes dominant.

I agree with the above.
What size are your Oscars now?
If they are not 14" adults yet, you may think the tank looks empty-ish, but be assured as adults they will make the tank look tiny.
And Oscars are pussy cats compared to most Central American Cichlid (especially Parachromis), an alpha managuense can turn even larger size oscars to hamburger once it hits its stride.
If you want a managuense, get it its own 125 (or preferably larger) with no other fish.
One other caveat.....if your tap water is at all hard, any nitrate level over 10ppm, can create chonic problems like HLLE as adults, so if it was me, with 18ppm nitrate now, I'd double my water change schedule and volume, and when just the two oscars are full grown adults, you may need to triple or quadruple it.

 

[Kelly_Aquatics]

ok so should I just stick with the two oscars nothing else?

 

[Galactik]

ok so should I just stick with the two oscars nothing else?

With those parameters I think you could probably do one more fish, but I would make sure it is not one that has a big bio load.

I think one way to get away with it would be to get something that will eat the scraps leftover from your Oscar's when they eat for example. This will reduce some of the uneaten food that always goes to waste with bigger fish.

I would also increase the volume of water changes to something like 70% instead of 50%.

Another thing you could do is change the canisters for HOBs (or sump setup is possible) and add pothos to your tank. Canisters tend to be harder to clean and with time become nitrate factories.