Evening all...so I have a lovely big 3ft tank (big for me lol), and currently I only have 3 Zebra Danios, 2 neon tetras and one angel fish in there. I have purchased the following fish, 10 small angels, 4 black skirt tetras, 6 black neons, 2 catfish, 6 golden barbs, 10 guppies. How many of these can I add to my tank without totally over stocking it? Just trying to get an idea of any extra tanks that I may need to have, thanks