yesterday i bought some nightcrawlers for my o and he wouldnt eat them instead he started pecking on my pleco. i have raised it on pellets, last week in fact, was the first time i fed it live food[two goldfish,which it swallowed whole] your site is really opening my eyes to care and maintenance. is there something wrong since it wont eat the worms?i do regular water changes,dont have a test kit for my water yet bear with me ill get it soon im just new to this, the oscar was given to me, and i have little experience with fish,but i do want advice. also will the oscar be content in my 75 gallon all alone if i decide not to keep the pleco?