What do you find discouraging? If it's in relation to the back and forth earlier in the thread about convicts being sa or ca, I just want to say that it's extremely important for us to try to be as accurate as possible. In doing so we have to hold each other accountable when we think someone is incorrect.
The reason is fairly simple, when we post things on here they are in stone, and they will pop up on a basic google search. When someone is googling for information on something and they see it here, and it turns out it's inaccurate, then they just continue the inaccuracy thinking it is valid because they saw it here. Or ultimately it makes the forum look bad/ a place that gives bad or inaccurate advice. Anyhow back to the topic.
I don't know of any good LFS in your area, but I can tell you that we are planning to move near there soon. With a lot of help and even more luck I will have my own LFS and I can promise you it will be the best one around, so here's for hoping.
It does sound like your aggression issues could be related to the tank size, apart from getting a bigger tank in the meantime you could put more cover in there to help break line of sight.
Is there any actual damage or is the BP just giving chase?