I have my two litter CO2 bottle inside of two socks..
keeps the temp fluctuations down to a minimum.

Worst case if there is no room to hang something on
the sides or back, you could always run a hose off
a power head and wind the hose/tube around the bottle.

--


Dr5000

| ø¤°`°¤ø,¸¸¸,ø¤°`°¤ø,¸¸¸,ø¤°`°¤ø,¸¸,ø¤°`°¤ø,¸¸¸,ø¤° `°¤ø,¸¸,ø¤°`°¤ø
| ((((º`·.¸¸.·´¯`·.¸.·´¯`·.¸. ((((º ·´¯`·. , .·´¯`·.. ((((º

Remember dont tap the glass,
....or your fish will think you're an idiot !


_______________________
"Rich M" wrote in message
...
In article ,
"Ozdude" wrote:


What about at the side of the tank then?

Oz

That would need to be a deep tank to fit 3 two liters on the side :^)
Seriously though, I don't think it would look very attractive having a
styrofaom box attached to the side of a tank. To each his own.