Hi, I am new to the forum and to growing. My question is this. Can you chill your res to much? I have a home made water cooler turned chiller and my temps on the highest temp setting is 45f.. I know most say 68f is best so if true then ill just set a timer on it and get the temp right.. Will it hurt or benefit sitting at 45f? I have 2 fine bubble air stones on a 4watt pump in a 5 gallon bucket so I already get a very nice amount of DO. I was just curious though cause I lost my first plant to root rot as my res shot over 80f for one night and when I woke the damage was done. So the chiller was a must cause a bottle every 2 hours wasnt gonna work through the night lol.. O and yes I know copper is bad so I went to hobby lobby and got some plastic resin and completely incased the coils and used a rubber hose with 100% silicone for the line so I can still bend it when needed. Anyways is a 45f res good or bad?