We were getting ready for bed and we always look at the tank at night with a flashlight. This is what I saw what am I please advise thank you. New to aquarium world and forums.
Thank you so much. I was worried because about 6 weeks ago we bought three aquariums and put them all together, with 0 experience. We have been doing water changes once a week 20 gallons out of 72 gal. My salinity is 1.025 consistently, my nitrates are between 10-15 ppm and phosphates between 0-25 ppm. When we first started all levels were off the chart.... due to tank being torn down and literally water and all being brought over. We have been diligently working at healthy water parameters. We have a total of $1800 into everything including the RO DI system. Thanks again everyone.