Hello! I have a question about what I believe is GHA.. I had a problematic infestation of it in my old tank, and, since we were moving and I wanted to downsize, I chose to do a semi-fresh start- I put all my live rock and sand in an opaque tote (with a bubbler and heater but no feeding) and left it, sealed up for 4 months. I recently set up my new tank and started to cycle it... the algae is BACK (see attached photos). I do not understand! I’m not thrilled about starting the battle once again, so thinking about tearing down and bleaching everything starting from scratch... Any recommendations?

