What kind of fish is this?

[danny boy]

lots of fish get humps its normally the males. check out blockhead cichlids on a google search. its totally pointless to promote them in the species but asia is very diffrent to where i come from. its hard for me to understand it for sure

 

[tothna]

Do normal fish (non-hybrids) get a hump that big?

 

[scottchristian]

looks like a serious growth/ tumor to me j/k " ITS NOT A TUUUUMA"