300 Gallon Jack Dempseys

[Harlan Kistler]

I would not think so if the jacks are fully grown but I have never tried. I do know silver dollars work great though at first they maybe be nibbled at but beyond that I would not say its a concern.

Thank you again! I appreciate it!

 

[Harlan Kistler]

I would not think so if the jacks are fully grown but I have never tried. I do know silver dollars work great though at first they maybe be nibbled at but beyond that I would not say its a concern.

Thank you again! I appreciate it!

 

[Gourami Swami]

Interesting, I was going to use giant danios or silver dollars as a shoaling, dither fish but mollys sound interesting. Will they eat the livebearers, I know now they don't even try to get my giant danios but they have eaten a few small feeder guppys here and there when they are fed them.

If you get livebearers that are big enough they will probably not be eaten. Small ones probably will though. Adult JD's might be too lazy to bother if they are fed everyday. I recommended them because that's what they live with in the wild, but silver dollars or giant danios would work fine as well.

 

[YankeeJack]

Post some pics! Where are you located? Let’s trade some fish!

 

[duanes]

If it were me, in that size tank I would have no more than 2 males and a number of females, in a harem type situation.
And because it was a display tank, I'd want geographically correct tank mates, which would negate South American species like Silver Dollars.
Geographically correct tetras would be Astyanax, although they are very aggressive, ao (if it were me ) I'd stick to shoals of sailfin mollies like P velifora (in the Eden Video), or Gambusia yucatana (in Cristalino)
If that geographically correct idea doesn't matter to you, then "que sera sera".
Here's how they live in nature, in Mexico. 1st Eden Cenote, then Cristalino, both Cenotes a short walk from the main highway, and a 30 minute drive south of Cancun.
Eden2
Cristalino
In Cristalino, note at about 1 minute, a pair defending a site, of about 250 gallons, from any other JD or cichlid that gets too close to that invisible border.