I'm still waiting for their first successful spawn, need to lower the pH and hardness (no time for that lately), but several interesting things have happened in the tank recently. Now I have three dominant males in the tank, two of them displaying to the same female all the time. One of them has been buliding quite large crater sticked to the piece of wood - reminds me of technique that is used by some Rift cichlids! Never expected something like that from Geophagus.
The third male turned out to be territorial just a couple of days ago, it rarely attacks other two males as his territory is hidden behind the largest piece of bogwood.
1-first territorial male, 2- second, with the largest crater, 3-the "newest" territorial, maintains his home in quite dark place, while he is the most colorful fish in the tank:
also displays (sometimes) to the smallest female:
while two others fight for the biggest female favors
I've got a little bit bored with them during winter months, but now I'm really enjoying these fish!