Here is my story.
I have kept seahorses for over 5 years. I had a tank of reidi that I had gotten from the start. I had a tank of CB erectus that I had for over 2 years. I decided to mix them in January. Today I have 2 seahorses. One of them is a baby erectus born to those who died. The other is a TR "Kelloggi" added in June to teach the baby to eat frozen.
To do it over again, I wouldn't take the risk.
If your horses are doing well in your tank, don't mess with success. That is going to be my motto from now on. Since Jan, I have lost over 15 horses. I am so discouraged now, I am about ready to hang up the whole works. If the baby wasn't the only horse I had ever been able to raise and was special to me, I probably would.