hikari

Does anyone know the differences between the Hikari Saki-Hikari Marine Herbivore and Hikari Seaweed Extreme? What about the difference between Saki-Hikari Marine Carnivore, Hikari Marine-A and Hikari Marine-S? Thanks!

I found some type of crab in the Hikari half shell clams when feeding the tank? Should I toss the bag or consider it a snack for the tank? Also what kind of crab is it?

All items have either not been opened or have been used once and resealed. Redsea Algae Management no3po4-x Redsea Reef Energy Plus Coral Nutrition AB+ Seachem Reef Builder Seachem Reef Advantage Calcium API High Range pH Test Kit API KH Test Kit API Calcium Test Kit Hikari Seaweed Extreme...