Trying semi-hydro on 3 of my orchids

Описание: Growing orchids indoor :
Brassavola
Cattleya
Laeliocattleya
Rhyncolaeliocattleya
Oncidium
Phalaenopsis
Maxillara
Aliceara
Encyclias
Dendrobium
Cycnodes Cycnoches
Neofinetias
Vanda Perreirara

⚡Barrina T5 growing led lights (2 sticks of 3feets barrina lights per shelf) : from 7am until 9pm in summertime (14h of light/day), from 7.30am until 8.30pm in spring and fall (13h of light/day), from 8am until 8pm in winter (12h of light/day).

🌡️Indoor Temperature :
°°°Spring & Summertime : daytime is 23/25°C, nightime is 20/23°C
°°°Fall & Winter : daytime is 22/23°C, nightime is 19/20°C

💦Indoor humidity 50 to 55% year around

🚿Watering : tap water (not so hard : 140 to 200ppm)
To give you an idea, I give with my water can around 40ml of water for a 3" pot, maybe 50/60ml of water for a 4" pot and more like 70 to 80ml of water for a 5 or 6" pot. For most of my orchids it is enough for 1 week (except oncidiums needs twice a week) and if I water more it starts rotting because my indoor humidity is high and no air flow like outdoor to dry the pot quicker.

°°°True wet/dry cycle so usually 1x/week for Cattleyas, Brassavolas, Dendrobiums & Phalaenopsis (no matter the plastic pot size, the less there is roots the smaller is the pot), usually every 5 days for Neofinetias in 4" clay pot

°°°Approching dryness so usually 2x/week for Oncidiums, Maxillara & Encyclias

°°°Rootless or almost rootless orchids : no regular watering at all but thin top layer of sphagnum moss that I spray every morning, it dries overnight, giving it really quick wet/dry cycles

🏺Potting Mix :
°°°Cattleyas, Brassavolas, Dendrobiums : thin bottom layer of new zealand sphagnum moss + 75% big size (18to25mm) orchiata bark with 25% chopped sphagnum moss + thin top layer of sphagnum moss in orchid plastic pots

°°°Oncidiums, Aliceara, Maxillara, Encyclia : thin bottom layer of new zealand sphagnum moss + 75% small size (6to9mm) orchiata bark with 25% chopped sphagnum moss (+ thin top layer of sphagnum moss if the orchid lacks of roots) in orchid plastic pots

°°°Phalaenopsis : pure new zealand sphagnum moss in orchid plastic pots

°°°Neofinetias : 100% new zealand sphagnum moss in clay pot

🍌Fertilization : 5 to 10 beads (depending the size of the pot) of Nutricote slow release fertilizer 13-11-11 in each pot + weakly weekly fertilization routine for 3 weeks followed by 1 week of only water&superthrive :
°°°From beginning of April until end of October (or until summer temperature are over and temperatures drop below 15°C) :
➡️For all orchids (except almost rootless orchids & orchids with new growth almost mature & orchids in spike & blooming orchids), for 1 gallon of water : 1/2 tsp of 7-9-5 Dyna-Gro fertilizer + 1/2 tsp of CalMag + 6 drops of Superthrive
➡️For orchids with new growth almost mature & orchids in spike & blooming orchids, for 1 gallon of water : 1/2 tsp of 3-12-6 Dyna-Gro bloom booster fertilizer + 1/2 tsp of CalMag + no superthrive at all (superthrive might switch the focus on roots instead of blooms)
➡️For orchids lacking roots, for 1 gallon of water : 1/4 tsp of 7-9-5 fertilizer + 1/4 tsp of CalMag + 1/4 tsp of superthrive

°°°From beginning of November until end of March :
➡️For all orchids (except almost rootless orchids & orchids with new growth almost mature & orchids in spike & blooming orchids), for 1 gallon of water : 1/4 tsp of 7-9-5 Dyna-Gro fertilizer + 1/4 tsp of CalMag + 6 drops of Superthrive
➡️For orchids with new growth almost mature & orchids in spike & blooming orchids, for 1 gallon of water : 1/2 tsp of 3-12-6 Dyna-Gro bloom booster fertilizer + 1/2 tsp of CalMag + no superthrive at all (superthrive might switch the focus on roots instead of blooms)
➡️For orchids lacking roots, for 1 gallon of water : 1/4 tsp of 7-9-5 fertilizer + 1/4 tsp of CalMag + 1/4 tsp of superthrive
➡️For orchids in dormancy (dendrobiums, catasetum, cycnoches) : no fertilizer at all