I’ve got a lot of red algae on my sand and wanted to know what my options are to get rid of it. I know I could use RO/DI water but a unit just doesn’t fit the budget. I’ve been cutting back on light hours and increased the flow but it’s not working. I’m open to a sand sifting fish however I’m worried about tumbling rocks. I recall reading something about a specific snail that would eat it. It’s so thick sometimes it acts like a carpet! It's a 55g FWLRO and one Niger Trigger.