again, I personaly don't like to use the word staple when talking about chameleons.
the reason is simple...most people will think that it is OK to then feed one type of food almost every day and the rest of the feeders is basicly used as snacks or supliments to the staple.
as such, no, even silkies are not good as a staple as they are missing a vital componant that a cham needs every now and then. they are also poor in the Phos to Cal ratio like crickets are, and unlike crickets and dubias, are not so easy to gutload with high calcium foods before they get fed off.
so are silkies bad? NO
but if used 2 to 3 times a week, along with at least 2 other food items, they make a great feeder to use.
a good example of what I'm talking about is say on Mon you feed silkies, Tues you feed some dubia, on weds you feed silkies again, then on Thurs you feed some baby supers, on Fri you feed silkies again, on Sat you feed some dubia again, finaly on Sun you feed some more silkies.
if this is what you mean as a staple, then yes, they make a great staple.
but in all honesty, crickets and dubia make a far better staple because they can be gutloaded far better in order to have a better balance of Phos to Cal ratio...without suplimental dusting of the feeders.(and you don't want to use too much suplimentation for this animal)
I recently purchased a flapneck about 3 months ago kept the cage regulated at 88f and 92 humid, and she is not doing well at all, infact she cought a bacterial infection and now im giving her shots every 3 days, she has eaten in a while. From what I understood from my vet i took her too is they are a very hard cham to keep, as of now I think she is dying ive been trying to feed her baby food but she quit eating a couple days ago

((( any suggestion on a new breed from anyone ?
if just your basking spot is 88F and the rest of your cage is about 75F then the temps are not bad. if your whole cage is 88F then this is a big problem.
92% humidity?
if this is only after you mist and the humidity drops to about 50% once dry then you are OK.
but if it's almost always 92% RH then this is the reason for the bactirial infection.
I highly recamend doing some reading on how to care for chameleons in general before looking to buy something new, as I'm not too sure your understanding of how to keep then in captivity is at this moment.
Harry