sand sifting star fish mating

[Myka]

What exactly do you mean by "mating"? Starfish don't really mate, they spawn - males release sperm and females release eggs, but it doesn't necessarily mean they have any physical contact. Is your tank clouding up? If so, get some water ready and do a big water change -size depending on your tank's volume. If you have a small tank do a huge waterchange, if you have a very large tank you can do a smaller waterchange. Fresh carbon will also help to absorb organic waste.