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Pet Forum / Aquaria / Marine Reef / June 2007White Patches on Live Rock
Hey there. I have noticed that the top of my live rock has developed a bleach white appearance on most surfaces. Looking around previous posts it seems like this is a sign of dead coraline algae. Should I be worried? The rock has turned white in all areas closest to the lights that is not covered with algae. I am new to sw aquariums. my first tank has recently finished cycling and I added 10 hermit crabs and 1 turbo snail 2 days ago. my 58g tank has t5 lights. 2x10,000k daylight and 2x420nm actinics. i have been using the daylight lights only. 12 hours on/off. i tested all the params today. calcium 450 ppm NH4 0.05 ppm NO2 0.05 ppm NO3 8 ppm ph 8.2 alk 2.4 temp 82-84 I also have alot of algae growth in the last 5 days. mostly brown stuff on the rocks, sand, and glass. other green and purple hair algae has grown on the rocks only. seems like all the params are where they should be. is it an effect of too much light? or are these symptoms nothing too worry about?? Thanks for any advice you all have, Aroon You don't have too much light. But coraline algaes do come from different depths, and thus like different amounts of light. In fact coraline algae grows best deep in the ocean. You are setting up a reef tank, not a deep water tank, so no you don't have too much light. There is also a type of branching coraline algae that only grows in shallow water in the bright sun light, and it looks like coral the way it branches. Wayne Sallee Wayne's Pets Wayne@WaynesPets.com Aroon wrote on 6/23/2007 4:51 AM: > Hey there. > [quoted text clipped - 32 lines] > > Aroon > I have noticed that the top of my live rock has developed a bleach > white appearance on most surfaces. Looking around previous posts it > seems like this is a sign of dead coraline algae. I've have the same thing going. It looks like somebody dipped my rocks in frosting complete with a few drips down the side. If it's dead, then is probably also inorganic from carbonate deposits. This will some times happen during warming, but then I should see the same thing on my heater. I'm thinking it's some sort of coraline algae. It only seems to be on certain rocks or rocks within the same location. If so, I have purple, pink, deep red, and now white algaes growing. I need to find somebody with a microscope, so I can take a sample and have a look at it. Nobody seems to have one just laying around. :-) --Kurt > > I have noticed that the top of my live rock has developed a bleach > > white appearance on most surfaces. Looking around previous posts it [quoted text clipped - 15 lines] > > --Kurt today, i noticed that some portions of the white areas have turned grey. maybe this is a type of algae development?? i have pink areas of coraline, but nothing as widespread as this bleached white stuff. i just hope my rock isn't dying. i have microscopes at work. just 50x dissecting scopes though. not sure what you'd see. The white is dead coraline algae Wayne Sallee Wayne's Pets Wayne@WaynesPets.com KurtG wrote on 6/23/2007 4:25 PM: > I've have the same thing going. It looks like somebody dipped my rocks > in frosting complete with a few drips down the side. [quoted text clipped - 11 lines] > > --Kurt > The white is dead coraline algae > [quoted text clipped - 21 lines] > > - Show quoted text - is there anything i can do to bring it back to life? or will this always be dead coraline? its pretty widespread. It will always be deal coraline algae, but new coraline algae can grow over it the same as it does over the rest of the rock. Wayne Sallee Wayne's Pets Wayne@WaynesPets.com Aroon wrote on 6/23/2007 6:35 PM: >> The white is dead coraline algae >> [quoted text clipped - 21 lines] > or will this always be dead coraline? > its pretty widespread. |
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