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Old 12-31-2010, 06:38 PM   #201 (permalink)
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Default Re: glutaraldehyde instead of excel

Hi wwh2694,

Cidex or Metracide both contain Glutaraldehyde and can be used as a substitute to Excel but do not use it if it has had the "additive" bottle mixed with it.

Per the MSDS for Cidrex is 2.55% Glutaraldehyde. Seachem Excel is 1.5% Glutaraldehyde. You don't have to dilute the Cidrex, just add less. For example instead of 5ml of Excel per 10 gallons for the Initial dose, use 3 ml of Cidex per 10 gallons. For the Daily dose us 3 ml Cidex per 50 gallons instead of 5 ml of Excel per 50 gallons.
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Old 12-31-2010, 07:53 PM   #202 (permalink)
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Thanks alot i have been using cidex for equipment disinfection for 14yrs. No wonder everytime i use excel in my tank it smells familliar. Happy New Year....
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Old 12-31-2010, 08:47 PM   #203 (permalink)
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Default Re: glutaraldehyde instead of excel

Quote:
Originally Posted by Seattle_Aquarist View Post
do not use it if it has had the "additive" bottle mixed with it.
please clarify how you would know that or not.
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Old 12-31-2010, 08:56 PM   #204 (permalink)
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Default Re: glutaraldehyde instead of excel

Hi spypet,

Typically the products ship with a bottle of "activator" which adds additional chemicals and boosts the disinfecting capabilities of the products for up to 28 days. Since we aren't disinfecting our tanks we don't add the "activator", we just use the basic solution which contains the Glutaraldehyde.
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Old 01-01-2011, 05:22 PM   #205 (permalink)
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Thanks
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Old 01-04-2011, 09:21 PM   #206 (permalink)
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I bought 1gal of Cidex for $15 bucks. It has 2.4% Gluteraldehyde.
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Old 01-04-2011, 09:41 PM   #207 (permalink)
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Default Re: glutaraldehyde instead of excel

Hi wwh2694,

Interesting....the MSDS that I found online indicates a 2.55% concentration. My guess is the MSDS I found is out of date.
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Old 02-09-2011, 11:43 AM   #208 (permalink)
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Default Re: glutaraldehyde instead of excel

Hi Seatle_Aquarist,

Quote:
Originally Posted by Seattle_Aquarist
I also ordered from EMS in the last couple of weeks. I purchased the 1 liter 50% biological grade for $23.00. The hazardous material charge is a UPS charge, not a EMS charge. My shipping (including UPS hazmat charge) was $32.24 for a total of $55.24. The concentration of glutaraldehyde in Excel is 1.5%. The 1 liter 50% concentration will allow me to make 33.333 liters of 1.5% glutaraldehyde at a cost of $1.657 per liter. Excel typically costs me $20 plus freight for a two liter bottle. Seems like a good deal to me, plus it allows me the option of making stronger concentrations so my doses are smaller.
I was wondering if you know the shipping cost for 450ml of 50% Glut from EMS. I reckon it will be about the same as the shipping cost for 1L. (32.24)
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Old 02-09-2011, 05:20 PM   #209 (permalink)
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Default Re: glutaraldehyde instead of excel

Hi barbarossa4122,

I learned recently, and verified with EMS, that if I ordered the 25% Glutaraldehyde there was no HAZMAT UPS charge. Therefore in the future I will be ordering the 25% Biological Grade Glut instead of the 50% concentration.
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Old 02-09-2011, 05:59 PM   #210 (permalink)
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Default Re: glutaraldehyde instead of excel

Hi Seattle_Aquarist,

Great info. I am going with 25% then and just use 120ml instead of 60ml for a 2L bottle of "excel" like. Boy, I am glad I asked you about the shipping. Thanks a lot.
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