What Is This Fish

[leanne2389]

Hi could someone please advise me what this fish is. It was sold to me as a paradise fish which I now know it isn't so would like to find out what it is.
 
http/i945.photobucket.com/albums/ad292/leanne2389/fish.jpg

 

[JoshyJosh]

That is a Giant Danio if you're referring to the big silver one.

 

[leanne2389]

yes its the main big fish. what are their behavioural traits?

 

[Chad]

They aren't picky eaters. I've never had an issue getting them to eat flake. They do like veggies so a good flake that has a veggie component is good. They are huge fans of blood worms and daphnia or live worms if you can get them. 
 
They are quite large when full grown, a few inches, they are shoaling fish so do best kept in groups (5 or more fish). Due to their size and the need to be in groups they require a large tank. While I've seen some say 30 gallons I personally feel 45-55 would be better and it should be aquascaped in such a way as to leave an open area for them to swim the length of the tank. So tall stuff in the back so they can swim in the front. 
 
When they are healthy they have a great coloration but it totally fades in stressed fish. While many fish change color with stress I find the change in these guys is pretty obvious. You can really tell when you have healthy ones.

 

[leanne2389]

I have 2 in a 300 gal tank with guppies, mollies, neons, doras 3 African dwarf frogs and now some red cherry shrimp I feed flake pellets and worms do you see any problems?

 

[Tongue_Flicker]

Yup giant danio indeed. They like easy pickings like some sinking pellets and they require highly oxygenated, well-filtered and slightly moving water so a moderate to strong water current is preferrable. The danio in the photo looks like it is gasping for air. They also shoal well with the other smaller danio species. They are peaceful and boisterous but their max size makes them difficult to stock with other fishes but other than that they are pretty hardy fish