Red hair algae

Shark888 · 03/04/2018, 03:12 AM

Hello,

Can someone tell me if this dark red hair algae mean something is not good in the water ?

JUNBUG361 · 03/04/2018, 04:17 AM

Cyano

mcgyvr · 03/04/2018, 07:24 AM

Yep.. not algae.. Thats cyanobacteria
Its very common in new tanks and you just need to siphon it out during water changes..

You can get a hundred reasons that people "think" cause it.. From too low of flow to phosphates issues to nitrate to dissolved organics to too much light to chloramines to blah blah blah..

Siphon it out with water changes and if you have no corals just turn the lights off for a while.. IF you have corals its safe to do a 3 day lights out but turn them back on after that..

Shark888 · 03/05/2018, 01:05 AM

Thanks for answering.

Shark888 · 03/07/2018, 07:42 AM

Hello,

Other part of my LR are having some red thing, can someone tell me if it's cyano ?

I can remove them by scratching them.

Shark888 · 03/07/2018, 07:43 AM

Forget pics

mcgyvr · 03/07/2018, 07:50 AM

Nope.. Thats coralline algae.. it comes in multiple colors,etc..... (not a nuisance like cyano)

Shark888 · 03/07/2018, 07:57 AM

Good to know it, thanks

ReefkeeperZ · 03/07/2018, 08:15 AM

looks like coralline and some sort of red gracillaria, mermaids glass and some caulerpa in that second photo.

03/04/2018, 07:24 AM	#3
mcgyvr Registered Member Join Date: Sep 2003 Location: North Carolina Posts: 20,050	Yep.. not algae.. Thats cyanobacteria Its very common in new tanks and you just need to siphon it out during water changes.. You can get a hundred reasons that people "think" cause it.. From too low of flow to phosphates issues to nitrate to dissolved organics to too much light to chloramines to blah blah blah.. Siphon it out with water changes and if you have no corals just turn the lights off for a while.. IF you have corals its safe to do a 3 day lights out but turn them back on after that.. __________________ Who me?

03/07/2018, 07:50 AM	#7
mcgyvr Registered Member Join Date: Sep 2003 Location: North Carolina Posts: 20,050	Nope.. Thats coralline algae.. it comes in multiple colors,etc..... (not a nuisance like cyano) __________________ Who me?

03/07/2018, 08:15 AM	#9
ReefkeeperZ Registered Member Join Date: Apr 2015 Posts: 392	looks like coralline and some sort of red gracillaria, mermaids glass and some caulerpa in that second photo. __________________ insert witty catchphrase here

03/04/2018, 04:17 AM	#2
JUNBUG361 Registered Member Join Date: Feb 2013 Location: Antioch,CALIFORNIA Posts: 1,091	Cyano

03/05/2018, 01:05 AM	#4
Shark888 Registered Member Join Date: Jan 2018 Location: French in China Posts: 178	Thanks for answering.

03/07/2018, 07:42 AM	#5
Shark888 Registered Member Join Date: Jan 2018 Location: French in China Posts: 178	Hello, Other part of my LR are having some red thing, can someone tell me if it's cyano ? I can remove them by scratching them.

03/07/2018, 07:57 AM	#8
Shark888 Registered Member Join Date: Jan 2018 Location: French in China Posts: 178	Good to know it, thanks