How deep a sand layer do you have? I am still torn between geos and kribs. I may just stick with geos since it sounds like they are calmer and less aggressive than kribs.
I'd say about 1.5-2" deep on average. The Anubias, and more recently a large Echinodorus of some type, seem to be thriving. There have been no problems with uprooting, even though the geos actively move sand in the more open areas of the tank. The Anubias have been spreading their tendril-like roots and new plants have started to grow from these, sprouting up between the rock work. All in all it has been more successful that I had hoped. Anubias is a pretty tough plant - slow growing, but tolerant of low light. Too much light results in algae growing on the leaves. Good luck! I think the geos would be more peaceful in the long run. Kribs can go either way.
