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suuresh1
IAH New Member
Joined: May 31, 2006
Posts: 61
Location: bangalore
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 Posted: Wed Jul 05, 2006 5:52 pm Post subject: |
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Greetings,
I too have been using glutaraldehyde for the last month with average results in my 55 gallon tank. The various algae are fighting a loosing battle but the plants are all doing reasonably well.
The best results are in my smaller tanks 2 x 1s. Both are doing very well compared to the larger tank. But no pearling happens any where. There is little to no algae in the smaller tanks and plant growth is brisk.
I dose the concentrated sol directly into the tank to prevent too much handling of the solutions. 5 drops in the small tanks & 15 in the larger tank
every night after lights out along with PMDD. There seems to be no effect on the fish, except that they are always hungry 
My Co2 should be comming soon but I'm thinking of continuing with the glutaraldehyde to keep the algae at bay.
cheers
Suuresh |
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Atanu
Regular Poster on IAH
Joined: Feb 17, 2005
Posts: 366
Location: Bangalore
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| Posted: Wed Jul 05, 2006 6:35 pm Post subject: |
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You won't be seeing pearling if you are only using glutaraldehyde. Pearling comes as a side effect of photosynthesis when CO2 breaks down to C and O2. Glutaraldehyde allows the Carbon chain to be directly absorbed by the plants. .. There is no Oxygen as a fallout of this process.. so no pearling.
Use pressurized CO2 as it will be more economical on long run for a big planted tanks. I am only interested in glutarldehyde for its algaecide properties.. and will continue to dose it for keeping algae at bay.. but the CO2 reactor will remain in place.. for overall plant nutrition. |
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Atanu
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Joined: Feb 17, 2005
Posts: 366
Location: Bangalore
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| Posted: Wed Jul 05, 2006 6:42 pm Post subject: |
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| vinven wrote:
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It seems like many hobbyists are experimenting with glutaraldehyde lately.I went to Laboratory traders amidst the mad traffic all the way from the other end of the city to find that they had no stock.The lady at the counter tells me that they got sufficient quantities of glutaraldehyde last week and they got sold off in no time Anybody planning to go to laboratory traders to pick up some of these will have to wait for a week.I am going to Vasa scientific in a while.Hopefully i find it there.
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 What's a phone for.. You should have given a call to these guys before you spent money on petrol. |
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Atanu
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Joined: Feb 17, 2005
Posts: 366
Location: Bangalore
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| Posted: Wed Jul 05, 2006 6:44 pm Post subject: |
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| Madan wrote:
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The price of Glutraldehyde 25% solution is almost double what it is elsewhere.
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Madan, Where is this elsewhere ?? Let us know so we can benifit too.
Regards |
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Madan
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Joined: Jun 29, 2003
Posts: 7087
Location: Bengaluru, India
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| Posted: Wed Jul 05, 2006 7:18 pm Post subject: |
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| Elsewhere is anywhere but Laboratory Traders. |
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arupch
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Joined: Jan 06, 2006
Posts: 85
Location: Kolkata
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| Posted: Wed Jul 05, 2006 8:30 pm Post subject: |
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Atanu, I'd advice you not to increase the 2X all at once. I've done this and seen that my fishes are gasping at the surface. so act carefully. increase the dose carefully to achieve the most effective level for your tank. For me it's 12.5 ml of the 1.5% solution per 15 G water everyday alongwith PMDD without any CO2 injection. As I've said earlier that the concentration of Excel that I've determined in Lab. is only an approximate value. exact determination can not be done because the quantity of sample that Madan was kind enough to send me all over from Bangalore was a bit less. Also my friend had to try many method to come to a suitable method of analysis. So Seachem recommended dosages may not work. Also Excel may contain other ingredients other than Glutaraldehyde.
it has very good action against algae and this is quite evident as Glutaraldehyde is a biocide.
As for plants, the results are very much encouraging. I was earlier using DIY CO2 in the same tank, although it was OK but I never got results comparable to Glutaraldehyde. Also its very easy and hassle free compared to DIY CO2.
Amitava told me that he got pearling with Glutaraldehyde in his tank. I think its time for Amitava to update his findings. Although I never got any pearling.
Guys, please update your results with Glutaraldehyde regularly. |
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amitava
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Joined: Mar 31, 2004
Posts: 375
Location: Kolkata
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| Posted: Thu Jul 06, 2006 9:39 am Post subject: |
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Hi Guys,
I AM having pearling in my 2'/1'/1' tank after water changes. and Those plants who are already reaching the surface give many bubbles. I think that is oxygen only.
If anybody wants to try this Glutaraldehyde method he/she should give it a try with small tank as a algaeside and co2 source IMO. It is very much usefull in a big tank as a algaeside also.
I am using dry powder of all the ferts directly into the tank as I am following EI method of dosing.
I must thank Arup for this fantastic chemical and all the hard work he is doing .
regards |
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ajaikumarr
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Joined: Jul 22, 2005
Posts: 629
Location: Coimbatore
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| Posted: Thu Jul 06, 2006 9:40 am Post subject: |
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I'm also planning to use Glutaraldehyde for the tank size of 36" * 12" * 18".
Can somebody clarify the following things
Can I use PMDD along with this?
When should I start the glutaraldehyde dosing after setting up the tank?
How about the lighting?
Is it necessary to keep existing CO2 setup at the begining stages? |
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vkv
Regular Poster on IAH
Joined: Jan 06, 2006
Posts: 881
Location: Mumbai
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| Posted: Thu Jul 06, 2006 10:25 am Post subject: |
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Hi,
Lot of people going the Glutaraldehyde way... 
I guess its important that everybody keeps the safety aspect in mind especially those with children at home. that includes me
THIS IS A DANGEROUS CHEMICAL.
From what I read on the net, it is toxic with long term effects of sensitisation in case of continuous exposure at greater than 0.1 ppm.
The concentration that we are using for dosing is way above this. Maybe everybody starting to use this should go back and read the warnings posted by Gopi before trying this.
It is mentioned that if you can smell the chemical(rotten apple smell) then the concentration is above the safe limits. I have noted that I do get a whiff of the rotten apples even with the 1.5% concentration that we are using...
Regards,
Venkat |
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Madan
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Joined: Jun 29, 2003
Posts: 7087
Location: Bengaluru, India
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| Posted: Thu Jul 06, 2006 11:31 am Post subject: |
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I get the smell even from the Bottle of Excel that Seachem sells.
Irritating for a moment. Take care. |
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vinven
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Joined: May 02, 2005
Posts: 432
Location: Bangalore
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| Posted: Thu Jul 06, 2006 1:42 pm Post subject: |
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I started dosing glutaraldehyde from last night.I prepared the solution by mixing 30 ml in 500 ml of water.My tank is 4' by 21" by 21" and i think it holds about 65-70 gals of water when the gravel and the top 1" is excluded.I dosed 35 ml of this solution and the PMDD just before switching off the lights.
One of my cherry barbs were swimming upside down today morning and is gonna die anytime.Rest of the fish seem to be fine and active.The tank is 2 months old now and may be it is still in its cycling stages.Am not sure though. |
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vkv
Regular Poster on IAH
Joined: Jan 06, 2006
Posts: 881
Location: Mumbai
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| Posted: Thu Jul 06, 2006 2:14 pm Post subject: |
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Hi Vinay,
Not that it has any relevance to the condition of your cherry barb, but Glutaraldehyde should not be dosed in the evening before lights out like PMDD. It is used during photosynthesis and should be dosed in the morning before lights on.
Regards,
Venkat |
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arupch
IAH New Member
Joined: Jan 06, 2006
Posts: 85
Location: Kolkata
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| Posted: Thu Jul 06, 2006 7:58 pm Post subject: |
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@Madan
The smell of the Excel sample you sent was the first confirmation that Excel contains Glutaraldehyde.
@Ajai
IMHO Gluataraldehyde or PMDD should not be dosed in a newly setup tank. Let it cycle first. wait atleast for 3 months. You can use CO2 alongwith Glutaraldehyde. Its upto you. You'll definitely get better result with both of them. You must dose PMDD alongwith Glutaraldehyde. Light should be high because this is a hi-tech setup. Anything less than 2.5W/G is a strict no-no. The routine that I follow is, dose Glutaraldehyde and NO3+SO4+PO4 mixture in the morning and Microsol B at night.
@ vinay
Always start with lower concentration with any chemicals in your tank. Increase it gradually. I started with concentration lower than what Seachem recommended. Increased it slowly over a period of 10-15 days to find the optimum conc. Also, when trying things like Glutaraldehyde never use any concentration recommended by anybody. Because no two tanks are similar. Read everybody's recommendations but use your brain when it comes to dosing in your tank. As a general rule I always start on a lower side. |
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sandeepraghuvanshi
Moderator
Joined: Aug 19, 2005
Posts: 4895
Location: Mathura, UP
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| Posted: Sat Aug 05, 2006 2:15 pm Post subject: Re: Glutaraldehyde as a Co2 source? |
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| Any updates? |
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sandeepraghuvanshi
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Joined: Aug 19, 2005
Posts: 4895
Location: Mathura, UP
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| Posted: Sat Aug 05, 2006 2:17 pm Post subject: Re: Glutaraldehyde as a Co2 source? |
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| Any updates? |
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