For most of the day yesterday, I rearranged my 75 gallon. I took off the background to let more light in, moved plants around, all that. The cories must have been happy because when I came down at 6am (before the sun came up) all of the cories in my tank were enjoying some afternoon delight. I have eggs on all the walls and on some plants. They normally spawn in the morning, but not this much. In fact, it's almost noon now, and they are at it again. I have 9 cories that I watched come out of their eggs, and I've raised them. I've had them for 4 years now.