well I can't comment on the business aspect of things, i'll leave that to the guys who know what they are doing.
However a few things, there are three species of angel fish, scalare, altum and i think the last one is leopoldi....... to have a website dedicaated entirley to angels with no mention of the other angel species is just laughable to be totally honest with you.
The overall tone and quality of information could also be improved, here's a few examples, from the 'all about angels' page
'angel's don't 'swim' as such, but float. They gracefully move about the middle / top of the tank using mainly their usual caudal and pectoral fins'
ok so angels do swim, i can see what you're getting at but you need to phrase that differently as it's midleading.
'angels are not fussy eaters and will eat more or less anything! Keep tetras away!'
you need to explain why to keep tetras away and also to clarify that it's the smaller tetras like neons which are liable to be eaten, if you put for example, a congo tetra in with an angel...... nothing will happen.
Throughout the website either write out numbers fully like 'Fourteen' or use the number symbols like 14. It's poor grammar to use both throughout a document, really they should be written out fully during passages of text but at the very least you should pick one or other method and stick to it.
there's plenty more..... i just think you need to do some more research and ensure all your information and advice is full and correct.