Hard, brown algae. What is it.Pic inside

ToddG · 07/21/2007, 01:35 PM

I have a brown algae that has taken up shop in a few different spots in my tank.

It is dark brown and appears to have little hairs on it. It is very hard. I tried to scratch some off with my fingernail after a toothbrush didnt make a dent and I could barely scratch through it. It is spreading VERY slowly.

My tank is a 120 with some sps, zoas, and 5 relatively small fish. I am running a deltec apf600 full time for skimming and filter sock on all return water to my sump.

I also just added a rowaphos reactor a couple of weeks ago just to see if phosphates were an issue. Even though tests show none detectible and I use only ro/di for top off and change water.

I will try to post a pic....

ToddG · 07/21/2007, 01:37 PM

PS I already looked at dinos and it looks nothing like them to me. No bubbles and it is very hard. No stringy like I have heard some describe dinos.

Also, it spreads VERY slowly and does not seem to be affected by what type of water change schedule I follow or lighting schedule.

jparamch · 07/21/2007, 08:58 PM

I've got it too. Never thought about trying to burn it off... thx!

ToddG · 07/25/2007, 06:09 PM

I dont know what you mean by burn it off.

I didnt try to remove it other than scraping it off with my fingernail or a toothbrush.

Anyone else have any suggestions on what this is?????

07/21/2007, 01:35 PM	#1
ToddG Premium Member Join Date: Feb 2005 Location: Jacksonville, Florida Posts: 67	Hard, brown algae. What is it.Pic inside I have a brown algae that has taken up shop in a few different spots in my tank. It is dark brown and appears to have little hairs on it. It is very hard. I tried to scratch some off with my fingernail after a toothbrush didnt make a dent and I could barely scratch through it. It is spreading VERY slowly. My tank is a 120 with some sps, zoas, and 5 relatively small fish. I am running a deltec apf600 full time for skimming and filter sock on all return water to my sump. I also just added a rowaphos reactor a couple of weeks ago just to see if phosphates were an issue. Even though tests show none detectible and I use only ro/di for top off and change water. I will try to post a pic....

07/21/2007, 01:37 PM	#2
ToddG Premium Member Join Date: Feb 2005 Location: Jacksonville, Florida Posts: 67	PS I already looked at dinos and it looks nothing like them to me. No bubbles and it is very hard. No stringy like I have heard some describe dinos. Also, it spreads VERY slowly and does not seem to be affected by what type of water change schedule I follow or lighting schedule.

07/21/2007, 08:58 PM	#3
jparamch Registered Member Join Date: Feb 2007 Location: Oregon Posts: 32	I've got it too. Never thought about trying to burn it off... thx!

07/25/2007, 06:09 PM	#4
ToddG Premium Member Join Date: Feb 2005 Location: Jacksonville, Florida Posts: 67	I dont know what you mean by burn it off. I didnt try to remove it other than scraping it off with my fingernail or a toothbrush. Anyone else have any suggestions on what this is?????