The Planted Tank Forum - View Single Post - CO2 mesh bell...Eureka!!!! A perfect simple solution?

fedge · 08-22-2004, 08:57 PM

Here's how I made mine...
image shown below...

A. Cut a cylinder about 2" in height.. Diameter depends on that amount of CO2 you want to disolve into the tank (so size of tank and ammount of co2 will determin the size of the diameter).. In a 10 gallon tank and below.. about 1.5 to 2 inch is all that is needed (with about 12 or less bubbles per minute)... in a 29 gallon I used a 3" diamter pop bottle, cut up.. ) This way ALL the co2 will disolve and none will bubble past the screening material!!!

B. holes are cut for the airline, and two suction cups.

C. Cut two squares of the window mesh approximately 25-50% larger than the conatiner..

D. fit them to the cylinder.. one mesh should be a quarter turn off set from teh one below (this makes a 45 deg angle difference in the patterns and smaller holes!!) I am unsure if two are really needed but it makes smaller holes and the smaller the better. It takes a lot more pressure to sqeeze air through a small hole than a big hole (try breathing through a vaccum cleaner tube and then a straw)...

E. Finish... I attached the screens(temp) with a rubber band.. then cut off the excess screen material (be careful not to leave sharp edges for stupid fish to kill themselves on)...I plan on glueing them on next time with either hot glue or a band of plastic epoxied to the outside (like a clamp). Attach the hose into the hole..(the hole should be small enough to hole the hose securely). and then attach the suction cups...I guess any good suction cup could be used. (like the ones that hang window ornaments)... I use two so that you can level the device (important to do), and so it holds very well in teh tank. If you expose the DIY yeast to air again after it starts the co2 production you could mess up the reaction(like a fresh bottle of yeast). Hope this helps... BTW this idea is for people to use for their OWN uses.. not to make money off it. If you would like to help me develope and sell this item I am free to discuss that prospect. This is really a cheap and easy along with simple idea... it is good looking and very adaptable to any tank.

08-22-2004, 08:57 PM	#16 (permalink)
fedge Planted Tank Obsessed (View User Tanks) PTrader: (2/100%) Join Date: Mar 2004 Location: Iowa, USA Posts: 460	Here's how I made mine... image shown below... A. Cut a cylinder about 2" in height.. Diameter depends on that amount of CO2 you want to disolve into the tank (so size of tank and ammount of co2 will determin the size of the diameter).. In a 10 gallon tank and below.. about 1.5 to 2 inch is all that is needed (with about 12 or less bubbles per minute)... in a 29 gallon I used a 3" diamter pop bottle, cut up.. ) This way ALL the co2 will disolve and none will bubble past the screening material!!! B. holes are cut for the airline, and two suction cups. C. Cut two squares of the window mesh approximately 25-50% larger than the conatiner.. D. fit them to the cylinder.. one mesh should be a quarter turn off set from teh one below (this makes a 45 deg angle difference in the patterns and smaller holes!!) I am unsure if two are really needed but it makes smaller holes and the smaller the better. It takes a lot more pressure to sqeeze air through a small hole than a big hole (try breathing through a vaccum cleaner tube and then a straw)... E. Finish... I attached the screens(temp) with a rubber band.. then cut off the excess screen material (be careful not to leave sharp edges for stupid fish to kill themselves on)...I plan on glueing them on next time with either hot glue or a band of plastic epoxied to the outside (like a clamp). Attach the hose into the hole..(the hole should be small enough to hole the hose securely). and then attach the suction cups...I guess any good suction cup could be used. (like the ones that hang window ornaments)... I use two so that you can level the device (important to do), and so it holds very well in teh tank. If you expose the DIY yeast to air again after it starts the co2 production you could mess up the reaction(like a fresh bottle of yeast). Hope this helps... BTW this idea is for people to use for their OWN uses.. not to make money off it. If you would like to help me develope and sell this item I am free to discuss that prospect. This is really a cheap and easy along with simple idea... it is good looking and very adaptable to any tank. __________________ Help control the pet population...spay or neuter people won't spay or neuter their dogs or cats!