Was deep cleaning my tank which included cleaning the sand. Was cleaning outside of glass due to the typical water going on outside of glass and saw this almost transparent thing looks about 2 inches long
It’s actually fuzzy when looking at it. Has not really moved. Will investigate and remove. I have regular bristle worms in my algae reactor. Much smaller though. Might be a large egg sack from a snail though. None of my fish go to that side of tank.