CO2 mixer project on Instructables.com
Lack of CO2 that is the secondary limiting factor (the light of course is primary) in photosynthesis and hence plant growth in planted aquarium. Following opinion of some more experienced people, is the most common reason of overgrowth algae in planted tank. Basically the race for micro/macro elements, in non optimal conditions, plants will lose as a more complicated organisms than algae. The cheapest and most accurate source of carbon dioxide is high pressure bottle with pressure reducer (might be solenoid valve and even eletronic pH meter). I’ve found couple of HowTo’s on Internet and decided to do by myself CO2 dissolver. On Instructables.com you can find my first instructable “CO2 mixer for planted aquarium” . In my opinion is one of the most efficient and accurate method.
Enjoy.
PDF Version: CO2 mixer for planted aquarium
backup excercises
Couple of commands useful for backup.
Starring: immortal command tar and also dd, split, cat, openssl, ssh
and of course: gzip, echo, date, du, df
The post is mainly for myself because I realized, every time I’m starting write a backup script I’m always re-discovering the wheel again, searching in google and digging in man pages. Anyway I’ve tried to make the post more “reader friendly” not only for myself.