Where Do I Get Help For Identifying Jack Demsey Gender?

[Dieses Madchen]

Yes. I bought a tank from someone who has my two Jacks and two oscars in a 47g. I move them to a temporary 75g, where the Jacks turned on the oscars because they wanted to spawn. The female Jack badly damaged one of the Oscars, who was about 4 inches bigger than she was. So, I moved the Oscars into a 120g tank. The oscars grew to about 10 inches by the time they were a year old, and then one of the oscars decided it did not want tankmates. I had to rehome him. I no longer have the oscars as the stand to my 120g cracked and the tank almost collapsed. When I get the stand fixed I plan on getting another oscar.

So yes, I would say I have had the exact same setup as you, only with a much more adequate setup. And it still did not end like you think it will. Hope this helps

 

[Skal]

Okay thanks I will keep that in mind

 

[dempseymom]

Female JD's have blue 'beards' and also have longer top/bottom fins, somewhat pointed at the ends, and normally reaching the end off their tail fin. Males fins are slightly more rounded and do not extend as long, maybe half the length of their tail. Males also become very dark when breeding or caring for the nest. In my experience the females are larger if the same age...that could just be the ones I have had though.

 

[dempseymom]

Just seen the photos. They are still pretty young, so between that and the photo quality I can't be 100%. However it looks like you have a pair. The darker of the two would be the male...the lighter appears to be female judging by her fins. Watch for a teal blue around its mouth as it grows to be sure...

 

[dempseymom]

I think I will have to disagree with you on that.

I have had over a hundred fish in ten gallon. Even with this many fish in a tank they all lived happily and I never had any problems with crowding but I had to clean it a lot.

Having that many fish in such a small unit actually can be harmful for the fish. Not only are most males territorial which will cause unneeded stress in a small set up, but the fish can grow deformed as well...not to mention the ammonia levels from their waste. I personally try not to have more then one inch of fish for five gallons, depending on what it is. More aggressive fish like Oscars require lots of room and a space to claim as their own. I have had almost a hundred in a 35 gallon, they were fancy tail guppies, and it was not by choice...they just multiplied way to quick to keep up. Having them all stuck together caused humps on their backs, tails fin damage, and they would obviously eat off any fry do to the lack of hiding options. Hope this helps...

 

[balajake]

This is my girl. Well I Am told its a she fish.

 

[Dieses Madchen]

Looks like a very lovely she-fish

 

[Crossfire]

I think I will have to disagree with you on that.

I have had over a hundred fish in ten gallon. Even with this many fish in a tank they all lived happily and I never had any problems with crowding but I had to clean it a lot.

That is complete and utter nonsense. One hundred fish? In a ten gallon tank? That would be like putting two elephants in a horse trailer. Or a Great Dane Puppy in a dog crate and expecting it to live there forever, but you know it's "happy" becuase it wags its tail at you. See how wrong that sounds?

How can you tell if the fish is happy? Did you talk to them and ask their opinion?
This is a common illusion. Look at the bottlenose dolphin. They always have that cute little smile on their face. Shove them in a bathtub and it'll still be smiling. Or a goldfish in a bowl. "It's always eating and it hasn't died yet, so it must be happy!"

You need to either rethink your stocking and return some of those fish, or buy a 6ft 250+ gallon tank to accomodate the fish. These fish are aggressive, large, and wasteful. They need room to grow and to swim, and adequate water volume to disperse waste and avoid concentration of waste. If you're going to buy such big fish, you need to be willing to spend big bucks to care for them. If you don't want to do that, then maybe you shouldn't have gotten them in the first place.


We are not antagonizing you. We are trying to help you to take better care for your fish. This way, you will enjoy them longer and they will be healthier. Otherwise, you'd always be spending more money on new fish, or medication.

 

[dbanner]

They are in a 20 but I will soon put them in a already setup 75 gallon

You will need ideally an 8 foot tank (8x2x2) which will be around 180UK gal/210US gal tank if you wish to keep 2 oscars and 2 JDs. A 6 foot (6x2x2) may work but would be too small IMO.

The advise you have been given is spot on. A 75 will be far too small. I have a 125 gal and all I have in there is a flowerhorn which will get the same sort of size as an Oscar give or tank an inch or so. Pretty sure FH's can get to around 12-13 inches. To me my 5 foot tank will look too small if I was to add even a 2nd fish of the same sort of size never mind 4 fish of that size in a 75.