My light broke a couple of months ago and I haven't been able to find a suitable light since. Instead I am using my 27watt, daylight lamp. It's over a 17 litre tank and if my maths is correct, thats around 7.2wpg. I only have Java Fern in the tank and its doing a lot better than what it does in my low light tank -- it's actually green, instead of black. I don't have Co2, but I dose a tiny amount of flourish now and again and I was just wondering whether I can get away without using Co2. I want to add Crypts and Anubia's, but the Anubia's under this lighting tend to turn a light green, but darken when I put them back under low light conditions. I also have a lot of Hygrophilia Polysperma in my low light tank -- 1.2wpg, that I want to add.
Thanks
Thanks