Well I'm growing something!!

[Tjolly1]

Usually pretty good at ID. I couldn't seem to find a good fit for it though. Thought it was just diatoms but seems to be growing a plant like structure now. Rock glass sand you name it it's there now. Of course we're still early at just at a month. Now

 

[Retro Reefer]

Looks like possibly Bryopsis, one method of eliminating it is razing your magnesium levels temporarily.