What kind is my lonely datnoid?

[tlindsey]

The usual night feeding of the 1800 gal where the three dats live:

I like everything in the 1800 gallon.

 

[thebiggerthebetter]

Dat update and rundown:

 

[Midwater]

In reaction to earlier replies in this thread that state that AT prefer brackish water, I feel this is totally wrong.

AT is not an uncommon fish where I live (for eating not collecting) and is only found in fresh water. Similarly, NTT and ST (when it existed) most definitely freshwater.

I have also seen on the internet many people say that NGT is brackish. I don't know, I have never been to Papua. But similarly, I think this is totally unqualified.

Pretty sure that all 5 Datnioides are all only freshwater.

 

[thebiggerthebetter]

One rescue 6" dat from Matthew, indo, stable, fork on one side, part stripe on the other, lovely yellow base:

 

[thebiggerthebetter]

After some significant reshuffle the smaller / slower-growing NTT goes from 240 to 1800 gal:

 

[thebiggerthebetter]

Dat grabs a mullet:

 

[thebiggerthebetter]

 

[thebiggerthebetter]

 

[thebiggerthebetter]

Need an advice:

 

[SilverArowanaBoi]

I know your Silver Dat got huge, thebiggerthebetter@, but would a smaller Silver be okay long-term in a 55-gallon with minimal tank mates? I've always wanted a dat, and this seems to be the smallest there is.