Hello. I have two angelfish which I raised up since they were babies. They have been showing some signs of pairing for about a month now. They play fight but they never hurt each other nor do they swim together. I was wondering if there is anything I could to do, to get them to breed. The temp of the tank is 27°, the ph is around 7.6, NH4, NO2, NO3 are all 0. There are 5 amazon sword plants which they can used to spawn.