I have access to a 3d printer and I actually found a file that converts the ac70 to a surface skimmer. Might give that a shot for now and see how i like it.Dr. Tims is great, but, you want to maximize your biodiversity and that can only be accomplished by introducing as many things as possible. I wouldn’t add anything as fast as bacteria goes for at least a month to allow your tank to stabilize, but never be afraid to add bacteria. Some people even dose it weekly with coral snow.
As far as the tidal goes, technically it will only add surface skimming (don’t underestimate that quality) but in my experience it’s the quietest and most reliable HOB pump on the market. The pump goes inside the tank and that keeps it incredibly quiet, it also negates the need to prime the pump. If there was a power outage while you are away, the pump doesn’t need someone to pour water in the back to get it going again. It just comes back on and starts working immediately.
The bio media isn’t necessary but also won’t hurt.
An ounce of prevention is worth a pound of cure