What kind of fish is this?

[Melita]

My brother in law just inherited a tank and 5 fish. He's been over feeding so the water is absolutely disgusting, I just did a 75% water change and I will probably do another on Wednesday. We are having trouble figuring out what kind of fish he has though.

They were semi aggressive to the guppies that they were housed with, which is why he ended up getting them.

The water is, as I stated, awful. I wouldn't normally pull them out to get a picture but I couldn't get a picture of their color otherwise.

 

[Guppyman34]

I am almost 100% sure that is a giant Danio. They are semi aggressive

 

[Melita]

I found another picture from before he got them in his tank. Would this confirm your thoughts? I thought danio too just didn't know what kind

 

[Guppyman34]

I found another picture from before he got them in his tank. Would this confirm your thoughts? I thought danio too just didn't know what kind

Yeah, now I'm sure. My brother has some and they look just like your brother In laws. Beautiful fish but can be aggressive.

 

[Melita]

Thanks Guppyman! Now I know how to help my bro in law with them more

 

[DanS180]

Definitely giant danio, I have one myself in a tank with a bala shark and Angelfish, I wouldn't say they're aggressive but I do see him chasing my shark around and vice versa... maybe just playing around? I've had them for almost 2 years

 

[Guppyman34]

Thanks Guppyman! Now I know how to help my bro in law with them more

No problem, glad I could help!

 

[Melita]

They seemed to be nipping at my friends guppies. They have a 45 gal tank with about 10 guppies and 2 plecos. The danio were introduced and just wouldn't stop with harassing the guppies, so they decided to give away the danios. They had inherited them as well. There are 5 of them now in a 15 gal tank, with some brush cover in one corner and lots of places to swim about.