Im new to the saltwater tank hobby and just started with an 8 gal biocube. Cycled for 1 week with LR and added 3 snails 3 hermit crabs 1 fire shrimp and 1 cup coral 3 days ago. Fed a little mysis shrimp yesterday and noticed ammonia spike to around 1.0. changed 20% 2 days in a row now. Should i be worried about my critters?