u/smashingflavours

Hoping someone here knows how to deal with this.

I had an extended business trip (7wks) and my fish care taker didn’t do so well caring for the tank. Fish survived but ever since I cannot seem to eradicate this purple algae? growth?

I’ve scrubbed the rocks, let them sit in sun for a couple weeks, bought a new log, got rid of my plants, vacuumed substrate, changed water multiple times, disassembled and scrubbed pump and filters…this stuff keeps growing back. This is 2 weeks post last scrub.