Green Spot Algae !!
Since I got my Nova light a few months back, I have problems with green spot algae constantly. I've reduced lights from 10 to 8 hours a day.
I have to scrape the back of my tank with a razor blade to get the algae off the glass. Otto's can't eat that stuff. I can kill it from my anubias by a light bleach dip but plants aren't supposed need dipping every month! (at all)
Everywhere I read on the net, it says increase phosphates. No way! My phosphates are already 1 and already higher than they should be. (Nitrates are 5.) If anything, I need a phosphate reducer, not raise it.
I'm not sure if I should began dosing with ferts again or not. Perhaps the other nutrients need to be raised up since the phosphates are higher?????
On a different note:
Ironically, I just checked the nitrates in my 55 gallon tank, not planted, with 5 blood parrots. My nitrates are 0 (as much as we always read in here that you MUST HAVE nitrates. I haven't done my water change in 5 days.
So, for a neat twist, the planted tank has nitrates but the unplanted one is at 0.
Sure, Lady H, just turn all the rules over backwards why don't ya?
Is there algae in the parrot tank? I got a real growth of algae while I was on holiday and came back to 0 nitrate, soon rectified itself once the algae was removed.
Unusually I have nothing more to add...
No, I have no algae in my parrot tank. That's my unplanted, bare bottom tank. 0 nitrates is no surprise to me as I've had 0 on many occassions, especially when there's no substrate in the tank. I also did my filter maintenance last week and an 80% water change. It simply means the tank is clean.
Originally Posted by MuckyFish
My planted 55 that got the new lights is my problem. Those new lights have spawned that green spot algae and I just wondered if I should be dosing ferts more regularly to balance what phosphates I have or simply start using phosphate remover. Phosphates has always been a problem for me because it comes out of the tap at almost 2 and should be less than .50 in planted tanks.
I need to do one or the other. More ferts or get rid of the phosphates but not sure which one.
Last edited by Lady Hobbs; 03-07-2012 at 09:58 AM.
I have been thinking about that Lady Hobbs. I rarely get that green spot algae. But then again, I have no phosphates in my water. It might be best to first try to lower the phosphate levels and see if that has a impact.
Just a guess on my part tho
If you take your time to do the research FIRST, you can successfully set-up and keep ANY type of aquarium with ease.
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Me thinks so too. Easier than doing all this thinking.
You'd think the dumb plants would be using those phosphates up.