Okay so i am brand new to growing phyto... I have read http://www.melevsreef.com/articles/10-step-phytoplankton-culture and watched pretty much every video I could find on youtube. I am starting my first batch now and have a few questions from the more experienced members if anyone has time to answer. First I ordered two of the disks from Florida Aqua Farm as the article instructed and a bottle of the f2. I also bought two glass 1 gallon jars withs spigots from walmart and other the other required pumps, hose etc.Link to jars: https://www.walmart.com/ip/Estilo-1-Gallon-Single-Glass-Beverage-Drink-Dispenser-With-Leak-Free-Spigot-Clear/148286476First since I am using 1 gallon jars is the single disk okay? I am using the 2ml f2 per gallon as recommended. Second I did buy 2 of the 1 gallon glass jars but I really dont need that much phyto, is there any issue with only growing one culture bottle/jar v/ 2 and when i split just keep growing in my large jar. I assume the risk here is if the culture crashes I need to start over. I did buy a second disk so I will have it on hand if it last a while in storage.The article said to stop growing when its no longer getting any greener, any pointers how to tell other than color? I am sure after a few days I will figure this out.My last question is I travel quite a bit for work and often for 2-3 weeks at a time. The phyto is to much to ask my tank sitter to cover so while I gone for longer trips is there any way to save the culture or should I just plan to start over when I return with a new disk.Anyhow thanks very much for everyone help.Shane