I emptied my 29 gallon planted out last night. I took out the gravel and all the plants. The plants are now in my 75 gallon along with the driftwood out of the 29. I have a pair of angels in the 29 that just laid eggs while I was at classes today. I am wondering if I can siphon the crap off the bottom even though they have eggs in there?? I do not want to scare them and then they end up eating their eggs. Also, is it ok to have the light on or should that be shut off until the eggs hatch? Thanks.