Hello to everyone,
I am trying to understand what's the best color temperature for my planted tank. I have been playing with my 75gl planted tank growing pretty well any kind of plants with a mixing of T-8 tubes such as:
1 tube 4000K, 2 tubes 6700K, 1 tube 18000K
for several months, but always having the following algae issue: after just a few days from the water change and glass cleaning, a typical green algae film always appears on my glass.
So, I began to think that maybe I didn't have the right combination of lights. So I tried to switch to 4 lights at 6700K. But the problem seemed to get worse (algae film appears faster after glass cleaning!). What confuses me mostly is that if you look at lights specifically designed for plants, they comes with different color temperatures! Some are around 2400K, others are around 5000K and other again around 6700K.
Well, if you could help me to better understand what's the right route to take, I would be extremely grateful. Maybe my problem is not the light, maybe something else?
I have pressurized CO2 (3-4 bubbles per second) and lights on for 8hr/day. I try to use EI with liquid fertilizers as better as I can. I have also tried to increase Co2 as Tom always suggest, but no luck (I can't notice any difference). I know that I could also try to have a black-out for 3-4 days to kill algae, but I am afraid that they could come back anyway.
Thank you in advance for any advice you may have for me!
All the best,