Just put the wood in the tank don't worry about putting near where they are hiding. They will come out and get it. You may need to sit still when they do. But it will start getting them into the habit of looking around the tank for food.
WOW!!!! Your tank is effin badass! I think something like that would be my dream tank.Along that note. I have a 250gal Vieja/Paratheraps tank. They have all either been together since they were small, or they have been with others and moved into this group. Either way, they all have been sharing the tank with other Vieja/Paratheraps species.
Here is a video I took today of my tank.
[video=youtube;wdZ21dmuR2o]http://www.youtube.com/watch?v=wdZ21dmuR2o&feature=youtu.be[/video]
Fabulous tank! Growing them together in that large tank from youngsters may be your key secret. My largest tank is 150 gal, and it doesn't seem to be enough to keep aggression down.
Wow! Nice fish and tank. I love your Vieja/Paratheraps. Do you experience much aggression? I see literally none in the video at all. Do they pick on the plecos? I phoned all my LFS and managed to find some 4" Argentea and Synspilum. Do you think that's already too large to introduce to my 180g with my 2" Regani? Thanks for the posts so far everyone!
Please note, Shawn's tank is not what I would consider the norm, and also most of those fish aren't fully mature. It can work, but be really careful and realistic and have a back up plan. I made a thread recently on CA cichlid community tanks where more people chimed in on what has/hasn't worked for them, including more details on Shawn's tanks... Definitely worth a read!