i have 4 blues and 3 altums and 2 of the blues paired off a few weeks ago. i just came home and saw a BIG batch of eggs on the intake tube of my filter... this is their first batch and im really excited to know they are a mated pair. now what? how long does it take for the eggs to see signs of fertilization? they are fighting off the other angels from "their side" of the tank. should i still take out the other angels or just let them deal with it? its a 55g long and semi heavily planted. i put a brick in there but they decided to lay on the tube. wish me luck, and any advice is greatly appreciated. thanks