Time for update Bought stuff from ah ma zone again [emoji28]. Witch hazel - Rumoured to stop RTN/STN. All based on anecdotal experience, RTN/STN is caused by some kind of cilates/bacteria (i tink) and this witch hazel can kill this cilates/bacteria. Ho siao or not, try and will know, as the saying goes dead horse treat using live horse medicine, in other words, since its 99% dying just whack loh. 🤣 Kalkwasser The legendary addictive that adds calcium and alkalinity and pH. Often dosed in the ATO but this method is very much dependent on ur evaporation. For me, i will use the doser and dose throughout the day to stabilize the pH. Purple non sulphur bacteria Based on description, dose liao ur reef tank will fly lol. Interested peeps can go algaebarn website take a look- https://www.algaebarn.com/blog/advanced/r-palustris-the-do-all-aquarium-bacteria/ Seems like holy grail of all bacteria, but as with all things in this hobby, its not snake oil unless proven so lol. Try try first, dosing bacteria to increase diversity also a good idea. Just got a new toy, olympus TG camera. Still trying to figure out the settings. This hobby will make u spend outside of the hobby lol. 1 hobby leads to another. Pok Gai soon. [emoji854][emoji854] Thanks for reading. Happy reefing! Sent from Singapore Reef Club mobile app