Underwurlde
Always look on the bright side of life..
He recently helped me - more than once! WITHOUT prompting as well.
@JamesC, what makes you say that? I'm intreagued.....No need for the light break as contrary to popular belief it doesn't do anything re algae
If it worked then this thread wouldn't have had to be started. If you have algae try it and see if it make even the slightest difference.
I think the idea came about some time ago before CO2 addition became popular. The theory was that to prevent CO2 levels dropping too low as the day went on a dark period was inserted so as to let the CO2 levels build back up again. As is popular in this hobby one person's theory becomes many peoples belief.
James
All I can say is don't do the 50% water change on day 5 - you are wasting your time and it will effect your NPK & trace dosing regime IMO