Bright Green Algae

[Toomanymatts]

I'm trying to figure out what this is. This green stuff showed up right after I got rid of my dino problem. It was a very bright neon green and my best guess along with some other responses was it could be the beginning stages of coraline. I haven't really seen it change much. It started on the flat rock and has slowly grown to the others. It's never in the sand bed. CUC won't touch it. I spent sometime trying to scrub it, it won't come up. It also seem like the purple is fading a bit as well. Thoughts?



Here are the parameters:
Temp: 81.5 (fallow for ICH)
Salinity: 1.0255
PH: 8.2
Ammonia: 0
Nitrite: 0
Nitrate: 25 (about to do a water change)
Phosphate: .25 ( this is the highest i've seen it, will test again tomorrow)
ALK: 13.5 (2nd time using the test kit, will test again tomorrow)

[seabass]

1 hour ago, Toomanymatts said:

This green stuff showed up right after I got rid of my dino problem.

Sounds like a favorable stage after a dino bloom.  Make sure to maintain relatively high nutrient levels to keep promoting healthy competition to dinos.  I'm thinking at least 10 ppm nitrate and 0.10 ppm phosphate.

 

Dinos probably killed off a good portion of your snail population.  Make sure to replenish them now that the dinos are more under control.

[Toomanymatts]

3 minutes ago, seabass said:

Sounds like a favorable stage after a dino bloom.  Make sure to maintain relatively high nutrient levels to keep promoting healthy competition to dinos.  I'm thinking at least 10 ppm nitrate and 0.10 ppm phosphate.

 

Dinos probably killed off a good portion of your snail population.  Make sure to replenish them now that the dinos are more under control.

Actually the snails and CUC all survived it.  All I have in there is a CUC and a pistol shrimp while the tank is fallow.  The green has been there about 6 weeks now.  Just keep waiting it out?  My Nitrate and Phosphate are up, and if they drop again I'll dose.  But that hasn't been an issue.  Should I black things out for 3 days and see what happens with it?   

[seabass]

I don't see this as a problem.  Seems like healthy growth to me, especially after a dino bloom.  If there is more green algae than you want, I might add a couple more grazing snails.  You could also shorten your light cycle a little, but I probably wouldn't recommend a black out.

[Toomanymatts]

50 minutes ago, seabass said:

I don't see this as a problem.  Seems like healthy growth to me, especially after a dino bloom.  If there is more green algae than you want, I might add a couple more grazing snails.  You could also shorten your light cycle a little, but I probably wouldn't recommend a black out.

OK.  I'll leave it as it is.  The snails/crabs don't seem to touch it.  amphipods crawl around it and don't touch it either.  The amphipods go to town on the glass and the divider between the tank and the filter.  Pretty interesting to watch them tear through the brown algae that shows up.  I'll just leave it alone and see what happens.  I'm sure things change once the QT is over and I add the 3 fish in the QT tank...