Looks like I actually may not need this anymore as the 8+ inch JD turned out to not be a bully to smaller fish. My JD was actually getting bullied by 3-4in. Blue Male Convict when I first put him the new tank. So much so, that I moved the blue male into my 30 gallon shortly thereafter. Point in case is that I may be able to buy small green terrors from the LFS and put them in with my JD to grow.