Angelfish breeding on fliter intake

[Adrenalinerush]

I have a a pair of angelfish that like to breed on filter intake of my whisper. This is the third time they have bred. The 1st was on the intake and I ruined it when I clean the tank cause I didnot know they laid eggs, 2nd time they laid on plants but again I clean the tank with realizing they laid eggs. the 3rd now reconizing the behavior they laid agian on the intake. I have alot slate but they like the the intake. Any ideas on what to do?

[SnakeIce]

let em go and see how they fair raising them from the intake....
most of the time they will have another spot that they will clean to put the newborn fry

when I was raising fry(different fish) I put they toe of a nylon over the intake to make sure they didn't get sucked in... I had to use toothpicks to hold the fabric away from the filter strainer so water could have more area to get through the fine mesh