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mervyn mervyn
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  • Posted on: 14/4/2013 10:34
Re: CO2 #1
Well, fingers crossed, I think that something is happening.

The black algae is turning red and I have read (no pun intended) that is a sign of the black algae starting to die off.
I hope so!!
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mervyn mervyn
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  • Posted on: 13/4/2013 14:10
Re: Is this Right? #2
Once again thanks Fishlady....giving myself a headache with all this thinking I have been doing!

As long as my lovely fish and lovely plants do not get into trouble I will be happy. My drop checker is now a lovely lime green and ph has settled.

Although the CO2 comes on 2hrs before lights on... it seems the CO2 does not take full affect until the lights come on and the plants start using it!

Thanks again FL I will put the paracetamol back in the box.
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mervyn mervyn
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  • Posted on: 13/4/2013 12:41
Is this Right? #3
Hi,
I do have a current thread about my CO2 setup but so not to be confusing I thought that I would start another for this particular poser!

I am using co2 and maybe I have got the wrong idea!

I have my CO2 starting 2 hours before lights on and the lights are then on for 8 hours. I have the co2 switch off 1 hr before the lights go off.

If I check the colour of my drop checker when the lights first come on then the colour is green but on the blue side. The ph is between 6.8 and 7ppm. After two hours of the lights on the colour starts going a lighter green and eventually to a nice lime green and the ph drops to 6.6ppm.

I thought that the ph/co2 would be constant?

Am I missing something or is that how it works?
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mervyn mervyn
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  • Posted on: 11/4/2013 14:19
Re: CO2 #4
Thanks SO19,
Will try and change 50% weekly and will start dosing 8ml of TNC daily from tomorrow.
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mervyn mervyn
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  • Posted on: 11/4/2013 12:30
Re: CO2 #5
Hi SO19,
I am due a water change tomorrow so you suggest me dosing TNC 8ml per day? I assume I will have to up the amount of my weekly change from 30% ? say to 50%?

I will remove my reflectors tomorrow......but.....my red plants look lovely and very,very red at the moment!! As I have changed the diffuser I will have to fiddle with the bubble counter until I get the lovely green colour back! Then I promise to leave it alone.
Then if that lot does not help I will try and adjust the flow.

Thanks again SO19
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mervyn mervyn
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  • Posted on: 11/4/2013 11:39
Re: CO2 #6
Hi SO19,
I have a Rio 180 but I estimate 160 litres of water.

I have just swapped out the reactor/diffuser for a ceramic disc one as I felt that the reactor was not working properly.

I have dropped the bubble rate down to 4 bubbles and will check the drop checker at 2pm.

I don't even think the ceramic diffuser is working properly either. Only seems to be venting from one spot on the disc?

I am trying my hardest for fish and water but seem to be going backwards at the moment.

Just to add the diffuser is only 20mm so do not even know if that is too small?
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mervyn mervyn
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  • Posted on: 11/4/2013 9:45
Re: CO2 #7
Hi SO19,

I am using 16ml per week of TNC Complete and 4ml daily of Liquid Carbon..stated dose is 3ml but overdosing slightly for the algae.

There is very little of the algae but definately coming back.

I definitely have more than enough flow..I have adjusted up the New wave pump to 1600lph...I would prefer it back at 800lph but just giving it a chance.

The other thing that has changed,apart from the CO2 is that I added reflectors to my 45w T5 tubes.

At the moment I am hoping that it is because it has taken nearly a week to adjust the CO2 injection to the right level.

I will have to keep a close eye on it and maybe take the reflectors off at the Weekend.
Thanks again SO19
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mervyn mervyn
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  • Posted on: 10/4/2013 16:07
Re: CO2 #8
Thanks for that.
I must update my photo as It has changed significantly with plants etc.

Well my lighting is not that high I have 2 x 45w T5 tubes with reflectors! I also only have one vallis in my tank amongst a load of other plants.

I have upped the bubble rate to about 8 per second and they seem to be tolerating it, with a nice green colour in my drop checker.

I am not sure that this reactor/diffuser is working as it should as there is a load of CO2 in the top end and the impellers seem to now have altered the way it is coping with the CO2. Difficult to explain but something has changed and I am not sure that it is big enough at about 6 or 7 inches.

I am really wondering whether it would be better with an ordinary diffuser?

Thanks again.
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mervyn mervyn
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  • Posted on: 10/4/2013 11:08
CO2 #9
Hi

I installed a CO2 pressurised setup last Thursday and have gradually upped the bubble rate.

I am now injecting 6 buubles per second and have a nice green colour in my drop checker. The plants are not pearling and I was told that there was not enough CO2. I upped the bubble rate to 7/8 per second but then the fish started to hang around the top of the tank. I reverted back to 6 per second and they stopped hanging at the top. The ph has dropped now to 6.8/7ppm.

I do not know whether it takes a week or two before plants start pearling or whether it is only certain plants.

The other thing is that the black algae appears to be coming back...but it appears to be only at the very front of the tank and on the gravel, not masses of it but enough to annoy.

I have good circulation and flow now. I have an Eheim pro3 250, a new wave circulating at 800 lph pointing to the front but I can up it to 1600 lph (on the higher rate the plants really lean over.

I am also using a reactor/diffuser run via a small submersible pump at 300lph but I believe it is more likely 200lph.

I am wondering if I swapped the in tank diffuser for a glass ceramic one I would get better results and use the small submersible to add more to the flow.

I am concerned about this re-appearance of black algae although I would not describe it as bba taking into account the pictures of black hair algae that I have seen. It is more like black dirt! but it is not dirt obviously.

My thinking is that by using a ceramic diffuser it may ensure more CO2 may reach the plants. I am new to CO2 this and clutching at straws really.
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mervyn mervyn
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  • Posted on: 6/4/2013 11:58
Re: Moving heater and Spray Bar #10
I have a Vtherm Digital and I moved it next to the outflow pipe.

It is working perfectly there on the back wall, but it is a very big beast. I am hoping the plants will cover it up completely, eventually.

The inline heater is certainly something I will look at when I need to renew. I will also look at an inline co2 diffuser as well, so that the tank is not cluttered up.
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