Hello. I am having trouble identifying this nuisance. I have a Red Sea Max 250 retrofit with Steve’s LEDs. It has been up for around 2.5 months. There is chemiclean present. I am only running Blue/Violet light right now, except for when taking the following pictures. pH is 8.3, salinity is 1.025, alkalinity is 8 and ammonia is 0ppm. I do not know whether or not these are Dinos but I do suspect it is. I have had no clean up crew fatalities to speak of. Can you guys lend me your opinion please?
Front of tank for reference.
Sand bed.