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- Murrieta, California.
- Just started
It is just 30 watts for the 70 gallon, which is less than .5 per gallon, so I know I need to upgrade.Do you mean 30 watts or 30 watts per gallon?
You're going to need some pretty powerful lights to have a heavily planted 70g tank. Even if you just grow low-light stuff like java moss and java fern you'll need at the absolute least 70 watts. High light plants are in the 3-5 watts per gallon range, so 210-350 watts.