Hi,
Let me start by saying that I'm a complete beginner here...
I got a Fluval Chi 2 tank (19L) earlier this month and this is how I set it up:
Day 1 (09/05/2016):
Water tests:

I already know I forgot to add Ammonia to feed the bacteria at this point... I started adding some on day 10...
Day 2

Day 3
Water tests
Day 4
Water tests
Day 6
Water tests
Day 8
Water tests
Day 9
Water tests

Day 11
Water tests
Day 12
Water tests
Day 14
Water tests
Day 15 (Today)
These are plant pics from today...
Monte Carlo

Eleocharis sp. Mini

Mini Java Fern

Rotala Rotundifolia & Lindernia Rotundifolia

At this point I'm completely confused about lighting... I can't find any info about the original Fluval Chi 2 Leds and some people say I have low light, and I've seen here in the forum that too much light can be the issue as well...
What should I do?
Let me start by saying that I'm a complete beginner here...
I got a Fluval Chi 2 tank (19L) earlier this month and this is how I set it up:
Day 1 (09/05/2016):
- Started with a layer of ~2cm Tetra Complete Substrate (There wasn't anything in the instructions saying to rinse it, so I didn't)
- Added a layer of ~2cm Fluval Ivory Gravel
- Added decorations (Thai goddess head and some Fluval Pebbles)
- Added water with Fluval Aquaplus & Fluval Cycle (doing the math for the correct dosage)
- Added a Fluval E Series 50W heater at 27.5ºC
- Started the filter
- Tested the water using NT Labs Test Kit
Water tests:
- PH - between 7 & 8 (leaning more to 7) NT Labs PH test chart doesn't have values in between...
- GH - 16
- KH - 12
- NH3 - 0.2
- NO2 - 0
- NO3 - 10

I already know I forgot to add Ammonia to feed the bacteria at this point... I started adding some on day 10...
Day 2
- Removed some water and added plants:
- Mini Java Fern
- Eleocharis sp Mini
- Rotala rotundifolia (seller offer)
- Monte Carlo (seller offer)
- 3 Moss Balls
- Lindernia Rotundifolia
- Added bottled water (same test results as tap water but a bit softer and with no nitrates in it) with Fluval Aquaplus & Fluval Cycle (doing the math for the correct dosage)
- PH - between 7 & 8 (leaning more to 7)
- GH - 14
- KH - 10
- NH3 - 0.5
- NO2 - 0.25
- NO3 - 10

Day 3
- Lights on from 9AM to 6PM (doing the same everyday from now on)
- Added Duckweed... regretted it 2 seconds latter... the water flow from the filter was sending it down to the bottom. It was a nice effect to watch, but then I realised it was getting inside the filter.
- Removed Duckweed
- Topped up with bottled water with Fluval Aquaplus & Fluval Cycle
Water tests
- PH - between 7 & 8
- GH - 12
- KH - 10
- NH3 - 0.5
- NO2 - 0.5
- NO3 - 20
Day 4
- Added Fluval Cycle (still forgetting to add Ammonia to feed bacteria)
Water tests
- PH - between 7 & 8
- GH - 12
- KH - 9
- NH3 - 0.5
- NO2 - 2
- NO3 - 20
Day 6
Water tests
- PH - between 7 & 8 (starting to lean more to 8)
- GH - 12
- KH - 9
- NH3 - 0.5
- NO2 - 2
- NO3 - 40
Day 8
- Changed about 15% of the water (after testing) and topped up with bottled water.
Water tests
- PH - between 7 & 8 (leaning more to 8)
- GH - 12
- KH - 8
- NH3 - 0.5
- NO2 - 2
- NO3 - 40+ (it's hard to differentiate between 40 & 80 & above... so I'll stick to 40+)
Day 9
Water tests
- PH - between 7 & 8 (leaning more to 8)
- GH - 12
- KH - 8
- NH3 - 0.2
- NO2 - 2
- NO3 - 40+

Day 11
- Added Ammonia to raise levels to 6 (after testing).
Water tests
- PH - 8.2 (got an API High Range PH test kit)
- GH - 13
- KH - 9
- NH3 - 0.2
- NO2 - 2
- NO3 - 40+
Day 12
- Did a 50% water change and topped up with treated tap water (after testing)
Water tests
- PH - 8.2
- GH - 13
- KH - 9
- NH3 - 5
- NO2 - 2
- NO3 - 40+
Day 14
- Added Ammonia to raise level to 6 (after testing).
- Added Interpet LED Colour Change Triple System, 20 cm (someone in another forum told me the issue with the plants could be low light)
Water tests
- PH - 8.2
- GH - 13
- KH - 10
- NH3 - 2
- NO2 - 8
- NO3 - 40+
Day 15 (Today)
- Added Seachem Flourish comprehensive plant supplement (following recommended dosage)
These are plant pics from today...
Monte Carlo

Eleocharis sp. Mini

Mini Java Fern

Rotala Rotundifolia & Lindernia Rotundifolia

At this point I'm completely confused about lighting... I can't find any info about the original Fluval Chi 2 Leds and some people say I have low light, and I've seen here in the forum that too much light can be the issue as well...
What should I do?