Just a tip!!
When using a breeder box, if the box won't fit/secure properly to the tank, try using your algae magnets. I was going to buy a new one and then i had a brainwave!!. What happened was i bent the clips to much and they broke trying to secure it to my 55g, the clips were originally set to my 10g(different shape)...I find it's actually more secure now...If anyone needs photo's, let me know and i'll post some tomorrow...Ian