ssick92
New member
Hey everyone,
So I recently got back from summer where my tank was essentially left to do its own thing. I lost my SPS and montiporas due to high nutrients. My nitrate got up to 50 and my phosphate up to .18 on a Hanna meter.
I have done 2 75% and 1 50% water changes and now my levels are undetectable for both. There is also no algae in the tank which points to low nutrients. I completed the last water change last night.
My question is this: I have a little patch of Cyano on one of my rocks, and it doesn't seem to be affected by these water changes. Flow isnt the issue, and I also just changed the lights 2 days ago, so old lights aren't the issue either. How long can this cyano survive in a low nutrient system? I want to avoid doing a lights out period as everything is a little bit stressed from such large water changes and shutting the lights out wouldn't make them any happier.
Also, kind of related, do any of you guys use Brightwell Aquatics Biofuel as a carbon source? I was looking into vodka dosing but my LFS loves this Biofuel stuff so I picked up a bottle and am thinking about trying it out, but want to get some feedback from you guys.
So I recently got back from summer where my tank was essentially left to do its own thing. I lost my SPS and montiporas due to high nutrients. My nitrate got up to 50 and my phosphate up to .18 on a Hanna meter.
I have done 2 75% and 1 50% water changes and now my levels are undetectable for both. There is also no algae in the tank which points to low nutrients. I completed the last water change last night.
My question is this: I have a little patch of Cyano on one of my rocks, and it doesn't seem to be affected by these water changes. Flow isnt the issue, and I also just changed the lights 2 days ago, so old lights aren't the issue either. How long can this cyano survive in a low nutrient system? I want to avoid doing a lights out period as everything is a little bit stressed from such large water changes and shutting the lights out wouldn't make them any happier.
Also, kind of related, do any of you guys use Brightwell Aquatics Biofuel as a carbon source? I was looking into vodka dosing but my LFS loves this Biofuel stuff so I picked up a bottle and am thinking about trying it out, but want to get some feedback from you guys.