Wow 3-4 times a week is normal?

I thought they only went once a few days after feeding. I've had Elysia for like 5 days now and I've only discovered one spot of urates and poop o_O I read that pet stores and breeders tend to only feed once every 7-10 days which is like the minimum to keep them healthy. So maybe feeding her every 5 days is going to fatten her up and make her wanna go more