Hi, I am new to the fish keeping world and I need a little help. I have access to a bunch of lake sand ( private property) , theres no issues with laws or any thing of that nature, however i do know they spray the lake once a year for plant population control. I do not know what chemicals resides in the sand and I was wondering if just boiling it would suffice or do I need to take further precautions. I know the easiest option is just going out and buying play sand, but I really like the look of my sand. Thanks.