Okay, so my platy has been in her own tank for a few days now, I have been doing a water change evry couple days ( I do not have a filter for this one). Anywas.. there is a lot of fish poop on the bottom of the tank again.. (the reason for doing changes and cleaning of the bottom) but I think she may have her babies REALLY soon.. would it be safe for me to do this cleaning now or should I wait? Id ont want it to be dirty when babies arrive. Thanks