300 is not a good price on that nor is $75 IMO. you could def. get a platinum senegal for that price. if no one else noticed this, then let me point out the fact the there is a TSN on the stock list. The tiger shovelnose will without a single doubt eat that 300 dollar fish in a matter of weeks. the rest of the stock is fine. i would trade in that TSN because it will get too big for a bunch of those fish and then the credit would lower the price a bit. but seriously that catfish will eat it soon.
I know you are trying to rescue it but you got a tiger shovelnose that will grow fast in no time and start eating you slender fish. The pbass and the oscar will eat the smaller sene as well. Unless you have another tank for them then go for it, but if not better let it be.