@Gavin Rodrigo Thank you so much Gavin! I was nervous to hear that I was doing something detrimental for them, so I’m glad it’s not, and thank you for being kind! I was doing a water change today anyways but that was after this picture was taken. I tested the water before I changed it and the nitrates were high, the ammonia was good and phosphates too. So I tested nitrates again after I changed 5 gallons and it was lower but not under 20 yet - would you suggest that I do another change in a couple days or wait the full week?