Thanks Gidge, I think I did the right thing too.
Here are some picture updates.
You can see the original lid with the filter and lighting removed, I cut some acrylic lid pieces to fit perfectly, added a Fluval 206 Cannister Filter that sits in the cabinet underneath and is far quieter and more powerful than the built in filter, and i also added a 60cm LED bank.
I think the tank still needs something.. I'd like to make the substrate a little deeper, and also I think the back of the tank feels a little bare sometimes, maybe some more plants. I really like the Lilaeopsis, so i will be getting more of that to bulk out the sides of the tank I think, and add some patchy middle ground here and there with it. Thoughts?
Here are a few of the fish, here's two of the three Sterbai (and Rummys in the background)
Here's the Female Apistogramma Viejita, not the best photo but oh well
The Male Apistogramma Viejita, wish his fins were flared out but tried for ages and couldn't get a nice sitting still photo, and this was the only chance.
And the Kribs, they have really grown since the first photos in this thread
*Edit* Managed to take two decent shots with their fins a bit flared, the Male and Female Apistogramma Viejita.