Feeding is a topic we don't all agree on and I suspect the differences have something to do with the different species. People that keep cold water animals all seem to agree that feeding every other or every third day is best. Very young animals (hatchlings) should likely be fed at least once a day possibly twice. My animals (warm water) are hungry daily up until they are well into senescence. Life span may be increased by reducing both temperatures and food but I am not sold on this thinking for warm water species and have not seen anecdotal postings that would merit doing so (there are postings for the cold water animals that are quite convincing).
So, rather than giving a recommendation, I will tell you how we feed and hope you will report your process as well. All my animals will eat daily and we experiment with how much but starting with half a shrimp. If there are leftovers, we cut that in half again. If it is fully consumed, we offer a full shrimp the next day. Oddly, they rarely take "seconds" and we no longer offer them. Feeding live is a bit different and in their prime they tend to eat at least 2 fiddlers. We DO fast them once a week but they will still come for feeding on those days (once they have adjusted to a normal feeding schedule). Sometimes I throw in a small live crab if the animal dances a lot when I go by the tank but they don't get a full meal. We have had extreme difference on how much to feed within the same species so you need to adjust accordingly. If an animal does not eat for a day, don't worry but you may need to start feeding that way (again, this is more typical of older animals). If it does not eat for 3 days, then worry and try changing food. This often occurs at the beginning of senescence and we have had animals only accept live crabs at this stage. Over eating is sometimes a sign of prebrood preparation so what you WANT to see is a steady eating pattern.
Diet variance is highly recommended. You can offer most seafood counter foods (avoid live/aquarium fish as they are almost always treated with copper). Clams (other mollusks are fine but very messy and heavy polluters, clams are fairly clean and can live in the tank until "discovered". I do let them sit in a bucket of tank water overnight to rid them of pollutants and be sure they are going to survive), blue crab claws (we go to the Asian markets and hunt through the live crab bins for the claws. The claws can be frozen but not the bodies. Frozen meat will have been cooked and you want raw), any kind of small crab (I recommend disabling the claws by breaking off on of the tips). Additionally, they will hunt pods and snails when first introduced but not so much when they are used to an easy meal.
HOWEVER, IME nothing in the first 2 weeks can be considered "normal". It takes about a month for them to really adjust to aquarium life and you will see numerous changes during that time. After the first two weeks (or sooner) you may not see the animal much at all. Don't give up or get frustrated, this is really just the beginning of the experience. It does require patience and regular (as in time of day) tank interface but MOST will acclimate to a feeding schedule and be waiting for food, many will eventually interact.
So, rather than giving a recommendation, I will tell you how we feed and hope you will report your process as well. All my animals will eat daily and we experiment with how much but starting with half a shrimp. If there are leftovers, we cut that in half again. If it is fully consumed, we offer a full shrimp the next day. Oddly, they rarely take "seconds" and we no longer offer them. Feeding live is a bit different and in their prime they tend to eat at least 2 fiddlers. We DO fast them once a week but they will still come for feeding on those days (once they have adjusted to a normal feeding schedule). Sometimes I throw in a small live crab if the animal dances a lot when I go by the tank but they don't get a full meal. We have had extreme difference on how much to feed within the same species so you need to adjust accordingly. If an animal does not eat for a day, don't worry but you may need to start feeding that way (again, this is more typical of older animals). If it does not eat for 3 days, then worry and try changing food. This often occurs at the beginning of senescence and we have had animals only accept live crabs at this stage. Over eating is sometimes a sign of prebrood preparation so what you WANT to see is a steady eating pattern.
Diet variance is highly recommended. You can offer most seafood counter foods (avoid live/aquarium fish as they are almost always treated with copper). Clams (other mollusks are fine but very messy and heavy polluters, clams are fairly clean and can live in the tank until "discovered". I do let them sit in a bucket of tank water overnight to rid them of pollutants and be sure they are going to survive), blue crab claws (we go to the Asian markets and hunt through the live crab bins for the claws. The claws can be frozen but not the bodies. Frozen meat will have been cooked and you want raw), any kind of small crab (I recommend disabling the claws by breaking off on of the tips). Additionally, they will hunt pods and snails when first introduced but not so much when they are used to an easy meal.
HOWEVER, IME nothing in the first 2 weeks can be considered "normal". It takes about a month for them to really adjust to aquarium life and you will see numerous changes during that time. After the first two weeks (or sooner) you may not see the animal much at all. Don't give up or get frustrated, this is really just the beginning of the experience. It does require patience and regular (as in time of day) tank interface but MOST will acclimate to a feeding schedule and be waiting for food, many will eventually interact.