For those of you running the Eheim surface extractor are you running it straight off of your intake or did you have the split “T” fitting and a second intake? I never bought the Eheim because of that “T”.

I did try the Fluval extractor with my Eheim 2215 and it worked flawlessly. I am not running it now but when I did I adjusted it to skim only for a couple of hours at night.

What I am doing now is during water changed as I am siphoning the tank water I using a 500mL cup and manually skim the surface. I have found that even if you do weekly water changes the surface scum stays and build and builds. Doing this now weekly for a while I have a clear water surface without any skimmer.

If i used it on anything larger than a 2215 I would use the "T" no need as is though!

Thanks for the advice regarding the extractor; I intend to give one a try. I’m still a bit confused as to why it’s inadvisable to inject CO2 directly into the up-take tube on my 2215 filter. Is the concern the "waste" of CO2? This particular filter has been running 24/7 for at least 10 years with CO2 injected for the past 5 years. Ya… it may “burp” from time to time, but other than that its never skipped a beat.

Again, thanks to all!

Peter

ps...Apologies for the misspelling of "suction" In the title of the thread.

I would not say it is inadvisable, I would say it is more like not exactly the best way to go about it, you can do it, and it will work well, although it will push alot of air/bubbles into the filter that really should not be there,
an inline reactor or the like's is a better solution for desolution to the C02 resolution!
Plus, you would not have a need to shove an extra airline tubing into you're tank strapped to the intake pipe and crammed into the intake strainer.

Oh and you can fix the typo by going to the first post in this thread and clicking the edit button.