Diver, - I stand corrected!
- Some very nice shades of red there. But are they suitable for cold-water tanks? - I have no experience of goldfish, but I always think of them as cold-water, - perhaps if the 'fancy' goldfish require higher temperatures, then any of the freshwater tropical plants would be suitable. But cold water may be more restrictive to the more exotic types of plant. ......... Can someone tell us?
But I do like some of those plants shown on the site you gave. Thanks!