I wont be able to have shrimps or hermits as the puffers will eat them so thats not going to be a problem, the nano will stay so it wont be an upgrade.
As for an update on the blennies, they have had a couple of fights now where I have intervened, red spot was going head first into sailfins tunnel and biting him, they have settled now and red spot has taken up home in a tunnel on the other side of the tank. Hope that will be the end of the territory fights. Both are thankfully injury free but no doubt a bit stressed. Will be watching eagle eyed till I go to bed tonight. Just got to prey they dont fight whilst I am at work......big fingers crossed! I honestly dont think they have been figting during the day today as this seemed to come about after food was introduced. If only I could talk to the fish!