My experience is very limited with pure Dwarf Burms, 50% dwarf Burms, and 50% Super Dwarf retics.
I have no personal experience with pure Super Dwarf retics. Just the information I have seen on some YouTube videos. So I am basically wanting to compare, to other people more in depth experiences.
My pure Dwarf Burm pair - I only owned them for about 9 months or so before they got the URI.
My 50% Dwarf Burm female - I have only had for the past 3 months.
And my pair of 50% Super dwarf retics - I just got about 3 weeks ago.