Is this a diatom bloom?
Hi all, been cycling my tank for a while now by adding pure ammonia to 4ppm, half live rock half dead rock, ammonia is sitting at 0, nitrite around 1ppm and nitrate over 100.
I have 2 T5HO one marine white one actinic blue on a timer for 8 hours a day and In the last few days iv had a huge brown looking algae outburst on the rock and glass and lots on the sand is this a bad thing? Iv never set up a saltwater tank from nothing iv always got established tanks so iv never had this before.
Thanks in advance