Nick16
Member
hi, i have done a quick search but im still unsure as to what these are.
i have seen one of these on fleebay.
http://cgi.ebay.co.uk/CO2-Diffuse-R...14&_trkparms=72:1686|66:2|65:12|39:1|240:1318
what do they do, i take it they fit onto an external filter or maybe not? i am a bit out of my depth here, if someone wouldnt mind giving me a brief outline of one, it would be awesome.
i have seen one of these on fleebay.
http://cgi.ebay.co.uk/CO2-Diffuse-R...14&_trkparms=72:1686|66:2|65:12|39:1|240:1318
what do they do, i take it they fit onto an external filter or maybe not? i am a bit out of my depth here, if someone wouldnt mind giving me a brief outline of one, it would be awesome.