i have a green severum that is 6 inches long and an oscar that is 4 to 5 inches would a 3 to 4 inch red streak gold severum get along can i have two severums of different kinds

I keep a Green Severum and a Gold Severum, both are Heros Severum, yet unsexed, stick together all the time and share the tank with my paired-off Oscars (2) and Convicts (4).

What do you mean by Red Streak Gold Severum? Green and Gold Severum are the same species; however there is a fish quite alike to Gold Severum that is not.

Pepe
Santo Domingo

it is a gold severum with very bright red spots and lines on it body it is very pretty i think ofl has one but calls it a red spot gold severum where hes at

im not 100% positive but i beleive that both the species your talking about are just colour morph of the hero severum species and should be fine together in your tank