It's not overstocked exactly, but it's a horrible mismatch! I honestly think you should make a choice between the guppies and the betta; it's just not fair on the fish, IMO; they could get terribly injured or even killed if it goes wrong.im thinking of getting a fish box i think its maybe 70 litres or so.
hmm i like danios they are hardy too arent they?
i like the idea of sand
so my stocking yet is this from what i gathered
a betta fish, a group of 6 neons,2 danios,3 guppies,and maybe coreys 2.
or is this a overstock? for 70 to 80 litres?
is that ok ?
Same with the neons and danios; they both need shoals of 6+ and you'll be far better off with more of one species than bits and bobs of different ones. Danios are too active for a 70l anyway; they need a 3 foot+ tank to be able to 'stretch their fins' properly.
Corydoras need to be in shoal of 6+ for them to feel happy and secure.
For a 70l, I'd do something like a betta, 6 or 8 rasboras and 6 or 8 pygmy cories.