co2 Overdose? - The Planted Tank Forum
 
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post #1 of 13 (permalink) Old 11-22-2009, 04:24 PM Thread Starter
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co2 Overdose?

Hello all,

I think I am overdosing c02 but I'm not sure. I am running 5bps into a powerhead 201 and I have that aiming at the intake of my Rena XP3 in my 75g. I don't have my drop checker yet to know for sure. I am running the lights for about 12 hours a day to start. 2x65watt 10k and one 65watt 67k(one just went out). Its a new tank that and has been running a little over a week. I was using and air stone with my co2 up until yesterday. Thats when I hooked it up to my powerhead. I do not have many plants in there ATM. A lace plant, wisteria, water sprite, oak leaf, dwarf sag grass, HC and dwarf hairgrass. The water sprite is melting, along with some of the oak leaf. Thats just one of the reasons that I hooked up the co2 to the powerhead. I woke up this morning and there is a white/clear film or skin like stuff that is sticking to all the plants that are in any kind of curent, like they are catching it. Also, the one otto I had in there was dead. Is that stuff co2 "scum"? Do I have too much co2 doing in with little, small unastablished plants?

Thanks for your help!

EDIT: Well I checked my PH and is was at 7.2 Yesterday is was at 6.4-6.8 I guess I answered this one. The white film was from the surface of the water. I guess I didn't have enough disturbance on the surface. I just aimed my spray bar up more and there goes more scum! Maybe I will try 2bps until the plants start growing and I get more plants... Thanks all!

Clint

Last edited by Dempsey; 11-22-2009 at 04:51 PM. Reason: edit
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post #2 of 13 (permalink) Old 11-22-2009, 06:08 PM
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your problem is not co2 overdose. THe scum is a natural occurrence.

It might help to get a CO2 drop check. The red sea one is only $14.


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post #3 of 13 (permalink) Old 11-22-2009, 08:29 PM
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C02 poisoning is possible but it hurts the fish not the plants you would see them gasping for air or dead it wouldn't effect the plants.

I'd stick with the airstone at night it will help your fish your plants can't use any C02 at night and the loss of C02 isn't that big of a deal.

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post #4 of 13 (permalink) Old 11-22-2009, 09:39 PM Thread Starter
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I have an electronic solenoid that shuts the co2 off when the lights go off. Maybe I should stagger it so it comes on a half hour before the lights do and an hour before they go off? Besides that, I lowered the bps to 1. For some reason, my PH has went up to 7.4 It was at 6.8ish yesterday and when the lights came on today, it was at 7.2 Now it's at 7.4 I don't want to do a water change since the tank is still just over a week old... The only fish that I had in there was an oto. Kinda hard to see if they are gasping... He looked fine before I went to bed and fine for the past few days. So, an OD is likely. Any idea why the PH could be so high?

Thanks,
Clint
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post #5 of 13 (permalink) Old 11-22-2009, 09:47 PM Thread Starter
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Here is a pic of the setup, so far. Not alot of plants. I just wanted some plants in there to get the tank started. See anything I could do better besides getting a real deffuser and drop checker? And raising the lights?
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post #6 of 13 (permalink) Old 11-22-2009, 10:09 PM
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Staggering the time the C02 comes on with the lights is a great idea I'd also recommend getting allot more plants some quick hornwort/fernwort would work well to cycle the tank and you wouldn't need to plant it just let it float in the tank.

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post #7 of 13 (permalink) Old 11-22-2009, 10:30 PM Thread Starter
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Okay perfect. I will do that. I figured water sprite would grow like crazy also. It does in my 29g with only 2x18watt T5 bulbs and DIY co2. Maybe the plantlets from that were just shocked with all of the new light?

Clint
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post #8 of 13 (permalink) Old 11-23-2009, 02:31 AM
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You might want to look into fertilization if you haven't already. Your plants will need Micro and macro nutrients. Do a search for Estimative Index, PPS Pro and PPS classic. Three different methods of fertilization. There is plenty of explanation of these methods in this forum.
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post #9 of 13 (permalink) Old 11-23-2009, 05:19 AM
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btw. CO2 is acidic. When you lower your CO2 level, your PH naturally went up nearer to your tap water's PH.


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post #10 of 13 (permalink) Old 11-23-2009, 06:00 AM Thread Starter
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That's the odd thing! Water from my tap my tap is 6.6-6.8! That's what is throwing me off.....
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post #11 of 13 (permalink) Old 11-23-2009, 10:44 PM
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your substrate is probably altering your ph.


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post #12 of 13 (permalink) Old 11-23-2009, 11:07 PM Thread Starter
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Is EC known to do that?

Clint

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post #13 of 13 (permalink) Old 11-23-2009, 11:19 PM
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Eco is washed in a "nutrient bath" after it's fired and it washes off in your tank so that's possible.

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