Join Date: Jan 2019
Location: Herndon, Virginia
Need help with red plants and light
I need you guys to help me pick up a light. But first, let me give you background information.
Its a 20G long tank. From substrate to the lid, its about 11 inches. I am injecting CO2, at the rate of pH drop of 1.1. Its a dirted tank, capped with blasting sand. Initially, I started off with Finnex Ray II but had an accident so on December 28th, I picked up 2 Finnex Planted+ 24/7 CRV lights. On Amazon, it says that it has True 660Nm RED LEDs. For ferts, I use EZ Green from aquarium coop.
At the moment, my tank has one half of the lid. The light in the front, it has to go through the glass lid. But the light in the back, its directly above the water. Thats where all my taller plants are. I have Rotala Blood red, Ludwigia Palustris, Ludwigia Peruensis, Ludwigia Natans, Rotala macrandra.
They are all growing very well. I have to trim them quite often. They are all bushy, and many of them growing laterally instead of vertically. I am happy with their growth. But they are mostly green. If you looked at them, you wouldnt know they are red plants.
So what am I doing wrong? I think I am getting around 60 PAR at the substrate level. But plants that are taller, and closer to the top, they should turn red, isnt it? Ludwigia Natans is nice red but nothing like what you see on google. Rest are just green with barely some touch of red. Am I really to think that 2 of these light is not enough?
So, based on all these information, what do you think is the reason? Wrong light? Wrong ferts? I ordered Thrive+. Should I wait longer since I got the light on 28th?
My CO2 comes on at 11, light at 1. Then CO2 turns off at 8 and light at 9. I added a video to give you an idea.