Green vs. Red Coraline Algae
- Thread starter euphoria
- Start date
rhomer
Member
Most likely that's not coraline algea. If you see the same green stuff on the sand as on the rock it's probably cyno bacteria. To check if it is, see if the stuff just moves off with your hand. If it does and it's kinda slimy then it's not coraline algea, it's cyno bacteria.
Coraline alge does not grow on your sand. At least I've never seen it there in the past 7 years.
Coraline alge does not grow on your sand. At least I've never seen it there in the past 7 years.
euphoria
Active Member
The weird thing is the stuff on some spots of the sand is same color as the stuff on the LR. The OTHER weird thing is that the green stuff on the sand is mainy on the very large sand particles, that are about the saize of rice grains. The very fine sand material is white and has no green stuff on it. SO maybe it IS coraline and is also growing on the little pieces of rock in the sand too?
L
lockemup
Guest
Need more of a close up, but I had similar thing happen and it turned out to be a form of alge, but not coraline. Also, I thought coraline can be different colors depending on the water conditions and lighting... I have had pink grow on plastic things like the powerheads, but green on my glass. However, recently I have had pink start forming on the glass as I am dosing with purple up.
rhomer
Member
I agree that it might be some sort of algea just not coralline algea. I would guess that this is part of the cycle of the tank. I've noticed over the years that I will have the sand change colors for a while then return back to white then change to some other color, and this change is over long periods (>3 months).
I wouldn't worry about it, anyway its kinda cool looking.
Rob
I wouldn't worry about it, anyway its kinda cool looking.
Rob
L
lockemup
Guest
does your hermit crabs eat it? Try a lawnmower blennie.
euphoria
Active Member
my hermits are kinda stupid 
They don't know what they're doing. I bought 50 of them and now only see a few around.
The green stuff doesn't come off, so I don't know how the blenny would eat it. also I don't have any pods. Don't blennies need pods to survive?
Yeah I had algae during cycling and once my MH's were on the tank, then the sand went all white, now it has some of this green on it, but ONLY on the large sand particles.
I'll try a close up, but I"m not good at taking close up pics w/ my camera.
Thanks
They don't know what they're doing. I bought 50 of them and now only see a few around. The green stuff doesn't come off, so I don't know how the blenny would eat it. also I don't have any pods. Don't blennies need pods to survive?
Yeah I had algae during cycling and once my MH's were on the tank, then the sand went all white, now it has some of this green on it, but ONLY on the large sand particles.
I'll try a close up, but I"m not good at taking close up pics w/ my camera.
Thanks
mudplayerx
Active Member
The green coraline algae tends to be lime-colored while the green microalgae tends to be forest green-colored. Simply brushing it lightly with a new toothbrush will easily remove the microalgae.