Hi guys,
For some time now I have had this odd looking substance growing on my rock. Could anyone advise what it is please and what is it caused by? Also tips to eradicate it would be great.
TIA [emoji4]View attachment 313828
It comes off pretty easy. It’s all over my live rock and I’m pretty sure it’s Cyano bacteria. Not sure about chemiclean, is it reef safe?
No reason to use chemi clean just up the wc size and frequency for a while and reduce feeding to every 3 days and manually siphon it out during. And if it’s that high up on the rock work you probably don’t have enough flow in the system.