Nice plants, though Rotala is more of a high tech set up type of plant.
A tip, generally if leaves are very fine or red leaves, these tend to be high tech or at least needs high light to keep the red colour otherwise will revert to green leaves again.
Rotala Macrandia
The Hygrophila should be fine though could not find Thermis exactly but think it may be Hygrophila difformis as that looks like most what is on your linked pic.
The Seachem stuff should be fine as they are a decent brand for plants, though admittedly I have not used any of those but their root tabs, but have heard good things about flourish.
A tip, generally if leaves are very fine or red leaves, these tend to be high tech or at least needs high light to keep the red colour otherwise will revert to green leaves again.
Rotala Macrandia
The Hygrophila should be fine though could not find Thermis exactly but think it may be Hygrophila difformis as that looks like most what is on your linked pic.
The Seachem stuff should be fine as they are a decent brand for plants, though admittedly I have not used any of those but their root tabs, but have heard good things about flourish.