I acquired 2 BD a few days ago. They are about 7 months old. One is male, the other is female. They have been in the same cage and it was insisted that I take the 120 gallon cage with them. I took it along with them reluctantly. It is wood and all their urine and poop absorbed into the wood on the floor and it smells really bad. So I put them in the cage I had for my other BD that's a 40 gal. I know it's small for 2 but I would rather have them in a smaller clean cage than a big filthy one. I have a 90+ gallon on it's way now. It will be here in a week. My problem is... He wants to hanky panky!!! He has been bobbing his head so hard that I am getting whip-lash. I can separate them one I have the bigger tank, but until then... I have to go to work and leave them unsupervised. Once that big cage comes in, I won't be so worried. It will be beautiful. I haven't come up with names yet, I will keep you posted. Feel free to comment. Any help will be appreciated. I have never delt with females before, let alone 2 BD in the same habitat.