Hey everyone - I have hornwort, some type of low-light sword, and (as of today) corkscrew val in my 10 gallon tank. I have not really had trouble growing plants so far in my tank. I was just wondering because I read in another post that someone said they don't vacuum around their plants so that the waste acts as a fertilizer and the roots aren't disturbed. Can this really help your plants or not? I never use any plant fertilizer or anything and I just moved from gravel to sand. Thanks!