Scrupie,

I am not recommending a rest period. The lights should be on continuously, I am just suggesting a shorter period than 11 hours, at least at first.

This rest period does not inhibit algae IME.

Good plant growth will and that requires light, carbon, fertilizer, 02, current, etc.

As Chris and Vaughn ask, what are you using for a carbon source? This is one of the primary plant nutrients and MUST be supplied. Fish alone cannot provide sufficient c02 for the plants.

I understand your longing for guppies and anacharis and you can have it, it is called a low-light,low tech tank and that is not so far what you have or seem to be going for.

Please think about the type of tank you want and then plan from that point.

High light and high growth which requires pruning and work?
Low light, less growth, pruning, etc.
Something in between?
How many and type of fish do you want?

All of these things may/can affect plant growth and the health of your tank.

This will make for a less stressful experience for you and your pets.

Hope this helps.