Hello, I’m new to the hobby and have picked things up here and there from different people and ended up getting 3 unopened bags of live sand and a bucket full of old reef sand roughly the same consistency. I was wondering since they’re about the same size if it would be ok to mix them for a little bit thicker of a bed. It’s a 125 gallon tank and the unopened sand is 90lbs worth, do you think that would be enough? I’d like a 1.5” bed which is the reason I would mix them. Any advice would be greatly appreciated. Thanks