John de Lange, of http://www.hobbykwekers.nl wrote an article about the 3600 liter tank.
He visited me in early January and spend an entire evening taking photos and making video.
If you cannot read Dutch, you could use Google Translate (in Chrome or Google Toolbar), and translate it into any language you like.
All pictures in this post are © J. de Lange, and have been posted here with his permission.
(2 male Chuco micropthalmus facing off)
(Male Vieja bifasciatum @ work)
(Massive male Parachromis loisellei)
(Head shot of Male Parachromis managuensis)