Planted Tank Guru
Join Date: Mar 2014
Location: Ontario, Canada
Without co2 with that much light you will be dealing with major algae issues.
Even with co2 you will still likely have algae issues because you won't have enough plant mass to outcompete algae.
I think the first thing you need to really decide on is what type of plants are you looking to grow. If you answer is something like; thick carpet, a lot of color, high light type plants you are going to want to run co2. If all you want is some big nice plants you don't really need co2 but the addition of co2 takes it to another level. Plants are made up of roughly 40% carbon, co2 might be one of the best things you can provide your plants.
Let's you plant choice dictate how much light you will run and what co2 requirements you will need.
In all cases plant require a carbon source, macro and micro nutrients, and light. The balancing act is key, it takes a bit to master that for sure.
Start off with a good mix of fast growing plant that are easy to grow and work you way to harder my demanding plants once you become more experienced.
75 Gallon Low Tech w/ Green Terror Pair