The friendliest place on the web for anyone with an interest in aquariums or fish keeping!
If you have answers, please help by responding to the unanswered posts.
Is this your first tank? Has it been cycled yet? You can't just ask how many fish you can add, they come in different sizes and make different amounts of waste (called bioload). You need to answer these questions first.
Agreed, there's no one answer, every fish is different. Do you have any fish you are interested in? You might want to read up on cycling and the two ways to do it (fishless or fish-in): Guide to Starting a Freshwater Aquarium - Aquarium Advice
Yeah, that will probably work. You should probably take out the cories, because they prefer groups of 4 or more, and you can't add any more in there. It is a bit overstocked anyway.
Would it be ok to keep the corys and have 3x x-ray tetras and 3x guppies. I wanted some bottom feeders. How many fish would you add at a time and how long inbetween adding the next ones. I would be doing a weekly 25% water change