new tanks

Hello! This is a two part question as I have just started to run a tank and my friend has had a tank for a bit longer but her fish keep dying. My tank: - 65 litre (14/15 gallon) - cycled for 2 weeks before adding cardinal tetras - added 6 cardinal tetras - waited a further week before adding 2...

I thought it might be helpful if, for reference, members would share their stocking suggestions and success stories for the most common sizes/types of nano tank. I'm certainly not experienced enough to write a definitive list on my own, but I figured if I start the discussion, it might lead to a...