Several different colors of algae on substrate. What is it?

RussC · 03/07/2018, 03:03 PM

Algae comes and goes. But there are some interesting colors? Some will stay longer than others. Its not a problem. And it only seems to be on my substrate. If its on my rocks I can't see it. What is all of it? I've been through the brown diatome phase. Some of it looks similar. But by no means is it a problem. Some is red/pupleish. Some even looks green.

nereefpat · 03/07/2018, 03:10 PM

Impossible to tell without a picture, but probably cyanobacteria. It comes in many colors, from red to green.

03/07/2018, 03:03 PM	#1
RussC Registered Member Join Date: Jan 2003 Location: Gulfport (Mississippi Gulf Coast) Posts: 1,405	Several different colors of algae on substrate. What is it? Algae comes and goes. But there are some interesting colors? Some will stay longer than others. Its not a problem. And it only seems to be on my substrate. If its on my rocks I can't see it. What is all of it? I've been through the brown diatome phase. Some of it looks similar. But by no means is it a problem. Some is red/pupleish. Some even looks green. __________________ When a habit begins to cost money, it's called a hobby! Current Tank Info: Red Sea Reefer XL 425 Alive and Kick'n BOD 8-29-17

03/07/2018, 03:10 PM	#2
nereefpat Registered Member Join Date: Apr 2016 Location: Central Nebraska Posts: 3,190	Impossible to tell without a picture, but probably cyanobacteria. It comes in many colors, from red to green. __________________ Pat Current Tank Info: 125 in-wall , 40b sump. 6 bulb T5. ASM G2 skimmer. LPS and leathers