I would put the algae problem on hold until you get the NH3
problem corrected. Bacteria starter, bio-spira etc is junk. Save your money for something useful like lottery tickets.
I have no experience with ammo-lock but I assume it is the same as prime. I have never had CC but I would stop vacuuming it until you get this under control. You may just be stirring up "stuff" and causing more harm than good since the tank is already on the skids. If someone thinks diff please advise. Do you have inverts in this tank? LR
? If it were me I would be about at the point to ........Put the fish in a hold tank with any LR
and inverts. Clean the current tank out throw the CC away put some sand in and start over. One thing that has not been asked. Does the tank have LR
? If so how was it transported from friend to you. Point I am getting at is LR
dieoff causing the NH3
. Worst case if you do clean out the tank and replace the CC. Buy some "Cured" LR
(if you do not currently have any). They would be better off than what they are living in now. They will not live long at all at current levels.