Thank you! It is relatively young, at least my youngest oneHappy new year!
Love the kovachiis, this one seems not young! Stunning bloom if you have another bud incoming
I use rain (TDS 6-10) or RO water always. TDS incl. what ever fertilizer never higher than 30-40. It's in an ebb and flow system, watered twice a day.
Changing the formula of fertilizer does not make it a “bloom booster”.Do you have a specific / different fertilizer that you use throughout the blooming cycle? I feed lightly @25-40ppm (a balanced bloom booster this time of year that has lower nitrogen) and water heavily every evening with a hose of RO.
Temperature? Read that it's a cool grower.Changing the formula of fertilizer does not make it a “bloom booster”.
If you feed at a constant amount-per-volume, switching fertilizers is one way to the nitrogen - a teaspoon of a 10-15-10 has half the nitrogen of a teaspoon of a 20-10-15 formula - but simply reducing the amount of one formula achieves the same thing.
The key to orchid nutrition is providing the proper mass of nitrogen - enough to grow well, but not so much that it quashes blooming. I don’t see any slipper as needing the kind of “rest” that stuff like catasetinae or some dendrobiums require, so as @Birgit stated, a pretty constant treatment with lots of water an frequent, very dilute fertilizer seems appropriate, especially if you consider that mimics the conditions in the natural habitat quite well.