I have been maintaining an algae free tank for some time now, but I am now experiencing several types of algae, and it is more than likely caused by lack of fertilizers to my light ratio.
Currently I'm sitting at about 5.8WPG. (2x 96w CF)
I dose 20ml solution KNO3 3x a week
12ml solution KH2PO4 3x a week
1/16 tsp dry K2SO4 3x a week
5ml traces 3x a week
GH boost 1x a week
Flourish Iron 3x a week with my trace.
Mon - Trace + Flourish Iron (about 2mL)
Tue - 2 solutions + 1 dry
Wed - Trace + Flourish Iron
Thurs - 2 solutions + 1 dry + GH boost
Fri - Trace + Flourish Iron
Sat - 2 solutions + 1 dry
Sun - 40-50% W/C
I am currently injecting about 3-4BPS through a inline reactor, and have very little surface agitation. My output is sitting about 3" below water line.
I have my lights on timers, 10.5 hours a day. (11am to 9:30P) as well as the CO2. When the lights go off, I have an air pump blowing into a ceramic diffuser causing surface agitation to please my fish.
I feed 3x a week with flake, 3x a week with tubifex worms and 1x a week with bloodworms
My substrate is a mixture of mineralized topsoil with a bit of dolomite, and red flourite, topped with 3m colorquartz black sand.
All my plants are affected, see below.
What are causing this algae? How much more fertilizers should I use based on the amount of light I am emitting? I'd like to note that the bulbs are less than a month old.
My SAE's hate the BBA. And I have no tests to check for the fert levels, or co2 for that matter.
I've actually seen a increase in the brown algae since introducing metricide (flourish excel replacement) to the tank to try and battle the BBA.