Hi I would like to grow weed indoor in DWC hydroponic system. To do so I connected with tubes 3 reservoir, so when I fill water in one reservoir it will fill the two others by communicating vessels. Each reservoir volume is 18 liters but I think that I won’t use all the volume so lets say the total volume is about 45 liters (Max). The ambient temperature can reach to 31.5 Celsius degree during summer. To test it I chilled the water in one reservoir (14 liter) to 20 Celsius degree and after one hour, when the lights are on, the temperature reach to 23 Celsius degree. I wondering if Hailea chiller of 1/20 HP can handle with it and keep the 45 liters below 24 Celsius degree or is it better to buy 1/15 HP. I am looking for the cheapest option but reliable.

Thank you for your help

Yaniv