Re: A little help with WPG/CO2/ferts??
The wpg rule is really outdated and what you want to look at is the lumens of the bulbs. The K ratings that you are using should be okay for a low light to the lower end of medium light.
One thing that you must understand (everyone should understand) is that all plants that you put into a tank isn't going to grow perfectly fine for everyone. I found myself trying all kinds of plants for my light levels, some just don't do good in my tank. So I usually get rid of the ones that don't do good and try others till I find what does and stick with those. An example of this is hornwort. Anyone can grow this easy plant but me. It dies within a couple of days of putting it into one of my tanks, But I can grow other plants like no bodys business.
One basic rule to remember when using ferts is swords, crypts and vals are root feeders. Stem plants feed from the water column. Your also using a liquid fert but you may need to use it 2 or 3 times a week. You should also be dosing macros which is nitrogen, phosphates and potassium, and also a little iron. Most liquid ferts don't contain enough of these so needs to be dosed separate.
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