Hi, guys! My plants are facing some problems and I don't know what is wrong. So, let's go:
Tank Setup:
200 cm (lenght) x 40 (width) x 45 (height)
360 L is the total capacity but there are about 300 L water, I think.
The tank was lit by 12 PL bulbs (220 w total) by 8 hours a day. But I've changed the illumination 3 days ago, now the tank is lit by 6 x 30 w T8 tubes (180 w total) by 8 hours too. Look at the pictures:
Before
After
Last couple of weeks the water flow was only 1400 L/h by 2 canisters 700 L/h each. I've increased this flow to 5000 L/h (I've put more 3 power heads 1200 L/h each).
The problem is that my tank are infested of algae (BGA and some kind of brown algae) and plants aren't growing! My CO2 level is Always between 25 - 35 ppm, I use a 2,72 dKH water filled drop Checker and another one with 5,78 dKH and I keep both green every time. Take a look:
My Co2 is controled by a ph computer. I dose full estimative index. I've bought some chelated elements in a compounding pharmacy and a did my own micronutrients solution. These are the elements that I'm using:
1) chelated Fe (iron) 20 %;
2) chelated Cu (copper) 11,09 %;
3) chelated Mn 15 %;
4) chelated Zn 20 %;
All these above chelated by glycine.
5) H3BO3 (boric acid);
6) Na2MoO4.2H2O (sodium molybdate dihydrate);
So, I've calculated a dose to add weekly this nutrient level:
Fe: 0,5 ppm (mg/L);
Mn: 0,15 ppm
B: 0,06 ppm
Zn: 0,03 ppm
Cu: 0,014 ppm
Mo: 0,009 ppm
I add 1/3 of this above 3 times by week.
Ok, now let's go to macronutrients regime. I add weely this nutrient level (divided in 3 days):
NO3 (from KNO3): 30 ppm;
PO4 (from KH2PO4): 6 ppm;
K (from KNO3 and KH2PO4): 20 ppm;
Ca (from glycine chelated Calcium): 30 ppm;
Mg (from MgSO4.7H2O): 10 ppm;
SO4 (from MgSO4.7H2O) 39 ppm;
Na (from baking soda buffer that I did): 16,5 ppm.
So, That's it. Here are some tank and plants pictures:
As you can see, my plants are awful! Some of them don't grow and are dying. My tank is 5 months old. Do you think I still have too much light? How about the PO4 week level, it's too high? And the water flow is too Strong? Please, any help your is welcome.
Thank you so much!
Tank Setup:
200 cm (lenght) x 40 (width) x 45 (height)
360 L is the total capacity but there are about 300 L water, I think.
The tank was lit by 12 PL bulbs (220 w total) by 8 hours a day. But I've changed the illumination 3 days ago, now the tank is lit by 6 x 30 w T8 tubes (180 w total) by 8 hours too. Look at the pictures:
Before
After
Last couple of weeks the water flow was only 1400 L/h by 2 canisters 700 L/h each. I've increased this flow to 5000 L/h (I've put more 3 power heads 1200 L/h each).
The problem is that my tank are infested of algae (BGA and some kind of brown algae) and plants aren't growing! My CO2 level is Always between 25 - 35 ppm, I use a 2,72 dKH water filled drop Checker and another one with 5,78 dKH and I keep both green every time. Take a look:
My Co2 is controled by a ph computer. I dose full estimative index. I've bought some chelated elements in a compounding pharmacy and a did my own micronutrients solution. These are the elements that I'm using:
1) chelated Fe (iron) 20 %;
2) chelated Cu (copper) 11,09 %;
3) chelated Mn 15 %;
4) chelated Zn 20 %;
All these above chelated by glycine.
5) H3BO3 (boric acid);
6) Na2MoO4.2H2O (sodium molybdate dihydrate);
So, I've calculated a dose to add weekly this nutrient level:
Fe: 0,5 ppm (mg/L);
Mn: 0,15 ppm
B: 0,06 ppm
Zn: 0,03 ppm
Cu: 0,014 ppm
Mo: 0,009 ppm
I add 1/3 of this above 3 times by week.
Ok, now let's go to macronutrients regime. I add weely this nutrient level (divided in 3 days):
NO3 (from KNO3): 30 ppm;
PO4 (from KH2PO4): 6 ppm;
K (from KNO3 and KH2PO4): 20 ppm;
Ca (from glycine chelated Calcium): 30 ppm;
Mg (from MgSO4.7H2O): 10 ppm;
SO4 (from MgSO4.7H2O) 39 ppm;
Na (from baking soda buffer that I did): 16,5 ppm.
So, That's it. Here are some tank and plants pictures:
As you can see, my plants are awful! Some of them don't grow and are dying. My tank is 5 months old. Do you think I still have too much light? How about the PO4 week level, it's too high? And the water flow is too Strong? Please, any help your is welcome.
Thank you so much!