Your best bet is to get started and see what happens. As zozo says, while there are rules of thumb, each tank is different.
If you start getting algae, then you probably have too much light and you can take out 1 or 2 of the tubes. Or even start out with 2 and add or subtract.
Everything in low tech takes longer, so don't panic, give stuff time. It can take weeks to see changes.
It's a big investment of time and energy to.set up a 350l tank, but the best way to.learn is to do. You can fry your brain reading too much online without the experience to process what it means, or what is rubbish. Unlike this post, which is solid gold obviously.