I got a male green manderin in my tank for quite a while now, so yesterday i got a female manderin and put her in with the male. After a while a saw the male was wondering around the female and soon later i saw the male sipping on the backside of the female. I got so scare and I kind of seperate them and I did, but the thing is that when I do that I saw a white stuff comes out of the male mouth. This morning I went on youtube to see how they were mating it kind of look like that, but im not sure if they were mating or the male just bite the female. I also check on the female body this morning i didn't see any mark or wound. Any advices is good right now..... cause i also have another 30 gallons with two seahorse in it, if they're mating i could put them in there.