Hi James! Thanks for your kind words first of all.
Skimmer - have no issues at all. Only part I'm cleaning, since it is in my setup, just the floating piece. but my one seems to be solid enough and I did not manage to break it (yet.lol.). what is surprising so far as I can be very clumsy.
Ferts. Switched to Tropica Specialized (all-in-one) but adding extra pure Potassium (K), product from Easy Life brand. 2 years I was using EI dry salts. on many projects. With EI I always got in troubles when increased light intensity. pipes getting dirty and need to clean once a month, geenish dust on glass to rub off on weekly basis, dosing as per recommended instructions also caused nitrate levels in 80-120ppm. Since I switched to Tropica+Potassium i have no issues with lowering lights (increased intensity), no greenish dust, no need to clean my glassware every 2 weeks, nitrates are down to 40ppm, plants are delivering more vibrant colours and finally are releasing oxygen as in video.
Fertilising regime:
on 90L on weekly water changes adding 6ml of Tropica liquid and 10ml potassium (as per intructions it should give me 4ppm potassium). then every morning 4 ml of Tropica all week around, and another 10ml of potassium on Wednesday.
I am planted!