Kalkwasser them tooI lost my 65 gal due to a mushroom explosion. And the few things they didn't kill, fell victim to my negligence once the situation turned hopeless. This happened at the height of lockdown. I was wavering on how to proceed but my only option was a full reboot. I can't find a pic of the full tank when it was overrun, but this one shows a little bit. When I went from LED to T5/LED hybrid, the things took off and spread everywhere quickly.