I finally summarised everything I learnt about my DIY Pots and created this video :) I hope this helps with your Hoya journey!
Timestamp:
00:00 Intro
00:22 DIY Hoya pots
01:38 Overview of DIY pots
02:32 (1) DIY pots setup
02:40 (1.1) DIY pot example
03:38 (1.2) 3 Elements of DIY pots
06:21 (1.3) Alternative water reservoir
08:31 (2) Stages of Reservoir
08:39 (2.1) How does it work?
09:31 (2.2) 1st stage of water reservoir
12:29 (2.3) 2nd stage of water reservoir
12:54 (2.4) How water roots work?
13:17 (2.5) How much water in the water reservoir?
14:13 (3) Choices of Pot Size
14:18 (3.1) How to choose the appropriate pot size?
14:50 (3.2) Do Hoyas like small pots?
16:06 (3.3) Hoya example: 6cm pot
16:52 (3.4) When should Hoyas be re-potted?
17:43 (3.5) Alternatives to re-potting?
20:37 (3.6) When repotting, how to choose the right size up?
21:12 (3.7) Hoya example: 8cm pot
22:14 (3.8) Hoya example: 10cm pot
23:30 Tricks to avoid algae
24:36 Hoya Conundrum: Whether Hoya roots can handle direct light?
26:17 Why do I make DIY pots for my Hoyas?
27:16 Final thoughts of DIY pots for Hoyas