Quote:
|
Originally Posted by Svennovitch Hello PJAN,
nice reading! I like your work a lot.
Can I ask you what aqua computers you have on your tank? I see an Aquacontroller, but do you have a Profilux too (under the viewer of your aquacontroller)? Why do you have 2 computers?
thanks and congrats on your n°1 place in AGA 2005! Deserved!
Sven |
Hello Sven,
Thanks a lot !
Yes, I have two computers.
I bought the Aquacontroler to control the dosing pumps ( on/off) and the pH.
But it couldn't control the dimmable T5 lamps, so I had to buy the GHL Profilux ( old first type ) also
The newer types of the Profilux can also control the Ph etc etc.
So, two boxes and now I can buy just one for all the functions. That's the price you pay for being the first.
Quote:
|
Originally Posted by Svennovitch What fertilizers do you use and what are your water readings? |
Fertilizers :
KNO3
KH2PO4
Profito (complete fertilizer with iron)
Twice a week I dose KNO3/KH2PO4 to get 10-15mg/l NO3 and 0.5-1.0 mg/l PO4. I only measure in the weekend after water change. Dosing during the week is pure a good guess and I'm happy if the water readings are not zero in the weekend. So it's not scientific
But with so much light I try to keep the nitrates rather high ( 15 or higher is good), but sometimes I measure below 10. It all depends of how much (fast growing) plants are in the tank.
The micro's - Profito- are dosed twice a week, normal dosage.
So I am not totally exact on the dosing micro's/ macro's, as long there is enough for the amount of light versus plants in the tank.
My "ideal" parameters :
KH 4
GH 5
uS 190
pH 6.5
NO3 10 -15 - 20
PO4 0.5 - 1.0
CO2 is about 30 mg/l.
Tapwater is very soft overhere and contains no NO3 or PO4.
Quote:
|
Originally Posted by Svennovitch If i look at this picture: 
I see in the reflections you use different tubes and not 6x 6000 K. Is that correct? What lamps do you use? |
Yep. Very good spotted
I'm using rather old T5 lamps ( 2 years ) for the pendant. I tried to figur out what kelvin-rate ( 3000 kelvin - 6500 kelvin ) was best for plant growth.
So I bought a good bunch of lamps and tested them all.
To be short : it made no difference and I could have saved me the money.
I preferred the cooler ones so that's what I'm using in the contest-photo's and under normal circumstances.
But one after another the lamps got broken. Maybe of age, maybe because I dimm them two 2% in the evening.
I had to replace them by "old testing" lamps like the 3000 kelvin etc.
And it just happened the day after taking the contest photo's...when I wanted to take also some shots of the surface.
Right now, my pendant has mix of all kind of colors ( 3000 - 6500 Kelvin).
I will not replace them right now, I'm saving my money for the new 965 -T5 lamps. The old were 860 lamps.
The first figure 8 is color reproduction = good
9 = very good
10 = sun - nature (technically cannot be achieved)
The 60 or 65 figure stands for 6000 or 6500 Kelvin.
A 830 has an eight for color reproduction and is 3000 kelvin ( yellow-warm ).
The brand new 965 has a NINE for color reproduction and is 6500 Kelvin.
It should be very good ... I hope.
Regards, Jan