Just posted in the comments
Thanks for photos! For your Build Thread, you could use those same photos & info, but instead of this thread you started in 'Meet & Greet' there is another Forum Area called 'Member Aquariums'
This is info I got when I was new, that maybe explains it better than I did above:
One fun way to learn from others and keep a record of your reef aquarium is to create your very own build thread! A build thread is just a thread that tells us about your aquarium and might include photos. You can create your build thread in one of these forums. MEMBER'S AQUARIUMS
Once you have created a build thread then you can get your VERY FIRST USER BADGE! YAY! It's easy to do and I have created a thread that tells you how to do it here: BUILD THREAD BADGE