teamgs
Aquarium Advice Regular
Greetings,
I had my 96W dual daylight CF give out and am looking at what to replace it with. I am only growing low light plants, and no CO2, and have been running 1 - 96W dual daylight CF and 1 - 50/50 actinic/daylight. The 90G "tall style" tank depth is 30" to the gravel from the light.
I have had issues with algae, and have been thinking about lowering the lighting some. I calculate that I have 144W, and thought this was fine, but now I read that CF's should be calculated at more like 175% towards the WPG rule. Top this off with the posts that state that 50% of light is lost at around 24" depths, and I am getting confused.
Let's say that I replace my dual daylight with a 96W 50/50 daylight/actinic. This would put me at 96W. 96 * 1.75 = 168W. 168 /2 = 84W at the gravel. Does this sound decent for a standard low light tank? Or should I stay with the dual daylight 96W which would give me 144W. 144 * 1.75 = 252 . 252 / 2 = 126W at the gravel?
Hope this makes sense, and you can give me some advice.
Regards,
Gary
I had my 96W dual daylight CF give out and am looking at what to replace it with. I am only growing low light plants, and no CO2, and have been running 1 - 96W dual daylight CF and 1 - 50/50 actinic/daylight. The 90G "tall style" tank depth is 30" to the gravel from the light.
I have had issues with algae, and have been thinking about lowering the lighting some. I calculate that I have 144W, and thought this was fine, but now I read that CF's should be calculated at more like 175% towards the WPG rule. Top this off with the posts that state that 50% of light is lost at around 24" depths, and I am getting confused.
Let's say that I replace my dual daylight with a 96W 50/50 daylight/actinic. This would put me at 96W. 96 * 1.75 = 168W. 168 /2 = 84W at the gravel. Does this sound decent for a standard low light tank? Or should I stay with the dual daylight 96W which would give me 144W. 144 * 1.75 = 252 . 252 / 2 = 126W at the gravel?
Hope this makes sense, and you can give me some advice.
Regards,
Gary