I am shocked... I have bought a total of 7 fish, 4 boesemani, 1 yoyo, 2 stiphodon gobies in this tank. As of about 4-6 weeks ago, I was down to 1 boesemani, 1 yoyo and 1 goby. Today, I noticed 4 baby fish in my tank!? I think it has been too long for this to be from the last rainbow to jump...