With such a barrier, the male or female can become uninterested. When they can see each other, its much better because there will be little or no distractions. That decor being used as a hiding position for the female is fine, but IMO, would be much safer for the female to get away from the male chasing her if it was in a corner.
I learned that using too many hiding places for the female can result in the male becoming uninterested, more aggressive (my guess is from frustration), or the female hiding too much.
I've also learned that when the female has a low number of hiding places, the pair tend to spawn faster (as in less amount of days).
Its kind of just personal preference. I have also tried this method of using the styro wall a few years ago, but it seemed to prolong the spawn so I would suggest not using the styro wall.
Originally Posted by jeffegg2
Well, one technique that I used to use years ago.... was a wall of styro with a one inch hole in it that separates two sides of the spawning tank. She can run to the other side through the hole and be out of sight.
Even then more obstacles for her to hide behind are better...