I appreciate your input big time. I may shift gears to the hermit crabs with a different bacteria tank starter (biospira or turbo900) and just supplement with the MB7 that I've already purchased like you're doing. I had the same experience. LFS guy said to use mb7 and everyone on here is like "why are you using MB7????" lolHey sorry for the late reply. Looks like some more good info was shared dealing with your concerns. I did mb7 for a few weeks and then the wife started bugging me to put fish in even though it wasn't cycled yet. Gave up on mb7, didn't really want to go that route any longer and wait a few months for it to finally cycle the tank.
Back to the beginning, I started with about 30lbs of dry rock and 40lbs of live sand and mb7. Once I changed my mind, I added about a 1lb live rock along with biospira to quick cycle the tank. I added a peppermint shrimp, a few hermits and a clownfish. that was around maybe April 20th.
Now on June 16th, tank is doing well. I left the lights off mostly for the first few months but have now kept them on during the day. No major issues with the tank, just have the brown diatom algae growing which the Astrea snails love to eat up. I now have 6 fish, 5 hermits, 4 snails, cleaner shrimp (peppermint shrimp and a yellow goby disappeared over night awhile back, think the dang emerald crab ate them, he just died though for some reason) and a serpent sea star. Also have been seeding pods and feeding phyto's to them. I usually feed pellets in the morning and mysis shrimp in the evening.
I also still dose mb7 once a week to keep the benefits of mb7 bacteria in the tank but as far as cycling, I didn't have the patience to wait long enough for it to supposedly work. My LFS guy said using mb7 was a quality thing over the quantity thing which I bought into for a minute until I posted on here.