I can't speak for all stores, but let's break some of that downGreat thread.
What is your percentage of DOA or fish who die shortly after you get them.
What are the more popular fish or the best money maker ones?
How long in average does a fish stay in your shop before it is sold?
Do you see a big difference between whole sale traders? Are some more likely to sell you poor quality fish?
How often do you get new fish? Daily, weekly, monthly?
Do you resupply a specific fish only when you are out of it?
Do you just get whatever the whole sale trader is sending you because you have to buy a certain number of items per month?
Are the inverts, such as snails and shrimps kept in a different system than the fish?
I wish that some store would sale macro algae, the way they sell fresh water plants. I always prefer to see what I buy and distrust pictures and online stores. I wonder why it is impossible to find any store selling macro algae.
If I tranship fish doa or within a day or two is 10% or so on a good order. From a domestic wholesaler under 5%.
What fish are popular is going to change depending on the store. I sell a lot of Wrasses and Tangs. Other stores in my area that are bigger In sure sell a ton more clownfish to newer hobbyists.
Money makers are generally a wash as prices are generally percentage based off of cost.
I could not give you an average of how long a fish might stay in the store, some fish a day, some fish a month.
I mostly only get the fish that I order.
I do not keep inverts with my fish. My fish system is designed so that I can treat it for any disease or parasite. I would not be able to actual do that it inverts in the same system.
I do sell a couple different macro algae, mostly harvested from my home system.