CichlidFish.com - Fish That Think.

What should i put in my fish tank i have 2 8" inch albino oscars
And i would like it if you could tell how to tell there sex?

Did you read all the info on the website on sexing? Do that first in the oscar section, and then do some searching of this forum for words like "venting", "genital papillae", "ovipositor", "dark spots", "trigger spawning", "tubes", "oval shaped", "2mm" etc...

After that you'll have a better understanding. And if you have some high quality pictures if your fish it could help us try and guess the their sex....