Yes, I've kept both. Digging isn't a problem provided you have plenty of "safe" zones. Areas that offer lots of cover with caves. rocks, and my favorite...branchy driftwood with lots of Java Fern attached so as to create several hidey holes. Cacatouides are spectacular, but their temperament is not predictable...I ended up with a single pair in a 55G with only a rubberlip pleco being tolerated as a tankmate. Certainly they were and are worth any problems. Watching even a single pair in a heavily planted tank...it simply doesn't get any better. I've recently set up another 75G, as soon as the tank matures (about 6 months) the current inhabitants will be moved to other tanks and a pair of A. cacatuoides "Orange Flash" will be the star attractions.
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