Red substance on my sand bed

[kingdog22]

Thank you!! I will first thing in the morning

It will easily come up, just make sure that you use a hose big enough to not get clogged because you have crushed coral and not sand. It's going to make it a little tougher. Once you get it out and you have alot of crushed coral in your bucket just rinse it extremely good with super hot water. Then return it to your tank. Everyone gets cyano! But it's easily dealt with.