Hi all, i was thinking about adding some new fish to my 300 gallon tank. The tank measures 6 foot long 3 foot wide and 30 inches deep. My current fish include: 12" albino oscar, 10" leporinus, 8" nicarogwanies, 3" jack dempsy (must be a runt has been this size for 5 years) two 3" silver dollars, one 3" fire mouth, pictus cat, rapheal cat. western painted turtle. When i originally set up the tank i had a few others but have lost a few here and there for various reasons. So i have been considering adding, a few severums, and a blue acara. my only concern is how do i add the new fish since i will most likely only be able to get juveniles that will easily be bite sized for the oscar. Also with my current stock would the new additions work well? Thank you for the help