Okay, after thinking about this for a while, this is the plan that i came up with.
The plan is to trade in my Giant Gourami and Tinfoil Barbs to my lfs. Add 2 more SD's potentially along with the Oscar. And as long as there are no aggression issues that would be how it would stay.
As for my 125, seeing as i have no aggression issues and my water quality is okay. The stock will stay the same, but i think i am going to add a sump/canister for added filtration?
sound like an okay plan?