Improving CO2, yet another thread...

jonny_ftm

Guru Class Expert
Mar 5, 2009
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Hi,

I know that you suerely answered this question many times, so forgive my ignorance and mind repeating it for me.

I have a 60 gal (40 gal real) volume. I invested in an inline CO2 diffuser (Aquamedic 1000) to replace my Flipper internal reactor for many reasons: esthetics, it was needing too much cleaning for my taste and it was difficult to reduce the CO2 gradiant.

The inline diffuser is filled with bioballs and is located on filter outlet (Eheim 2028, 280gph). CO2 moves against water current from bottom to top.

I see that the bubbles reaches the top of diffuser too fast, that is with an unchanged size. I also noted that I need the same bubble count as I used with my internal diffuser. The CO2 check test looks ok, the plants also.

I was wondering though, what I could do to make the CO2 dissolve better before reaching top of my external diffuser. All this do it your self complicated thing is way out of my competence. So, do you think at any simple way (adding a pump or something else) to improve this?

Many thanks for helping me
 

shoggoth43

Lifetime Charter Member
Lifetime Member
Jan 15, 2009
1,092
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As long as the CO2 doesn't fill the AM1000 you should be fine. One of the problems people have with the AM is that the inlet/outlet is too small. Since you have one of the canister filters, your best bet will be to insure that the filter is clean so you don't cut down on your flow. More flow through the reactor would be better if possible, but you might need another pump for that which you could just run on a closed loop. i.e. powerhead to reactor and then back into the tank.

-
S
 

jonny_ftm

Guru Class Expert
Mar 5, 2009
821
2
16
In deed, inlet/outlet of AM 1000 are 12mm (1/2") instead of the less restrictive 16mm (5/8") diameter.

The CO2 doesn't fill at all the AM in my case, I even don't see the air level on top of the reactor

Running a powerhead is too noisy for my taste and will take place in the tank

Maybe as you say, I keep it as it is. I'm just deceived by the assumptions that using inline reactor would reduce my CO2 flow compared to internal passive reactor.
 

Gbark

Guru Class Expert
Jun 15, 2009
266
1
18
You could always take out the bioballs and replace with cirax, see if this helps :)
 

jonny_ftm

Guru Class Expert
Mar 5, 2009
821
2
16
Funny, this is one year old thread!!!!

AM1000 is working greatly untouched, just for the feedback