Current USA Satellite Plus Pro

Hi there. I'm using the same fixture on a 36gal

Generally speaking, it's been a great unit. No problems, easy to install and maintain, and looks great on top of my rimless tank.

However, with the unit 7" above the waterline, I don't get enough PAR at the substrate (19" below the waterline), so it's not quite strong enough to grow a good carpet. Great for the taller background plants though.

I keep my unit at 95% intensity on all channels. I have a PAR meter which gives me a reading of 45 at the substrate. Not much change increasing the intensity to 100%, so I keep it at 95% (thinking the unit might last longer, but that's probably not true)

 

I have one. Amazing light. In my opinion, best like out there. Why? Because you have timer with sunset and sunrise, total control over light intensity, and it's high powered.

I run a low light tank and run the light at 68%. I tweaked settings more than once and as soon as I go over 68 I get algae. I run my light directly over the top of the tank and have a breeder tank, so it's wide.

As for the red.. I'm not totally sure but at 95% you're getting a load of light, of course, depending on the depth of your tank. At full power, 18" you're getting 70 PAR, that's huge. Are you missing Iron? Or maybe you need to play with the different spectrums (that topic is a bit out of my league)