glutaraldehyde instead of excel - Page 11 - South Western Ohio Aquatic Plant Enthusiasts (SWOAPE)

hl0107 · 01-31-2008, 12:40 PM

Can I use Cidex Plus?
The bottle says that is 3.4%glutaraldehyde solution.
How many ml can I dose in a 90 gallon?

Thanks, Hector.

megasycophant · 02-01-2008, 08:34 AM

From googling it (don't take this as gospel), it looks very similar to the stuff that we get. Our solution is 2.5%, and I'm dosing around 1 ml per 5 gallons (some dose more to combat algae, etc). To dose at the same concentration, you'd dose 2.5 / 3.4 * 1 ml = 0.74 ml per 5 gallons.

hl0107 · 02-01-2008, 01:07 PM

Thanks for the help!!! megasycophant.

DanD5303 · 02-14-2008, 09:51 AM

Quote:

Originally Posted by cs_gardener

I bought my glutaraldehyde from http://www.emsdiasum.com/microscopy/...raldehyde.aspx

I bought the 50% 450 mL biological grade for $18.00 and shipping was only around $6, so it's very reasonably priced and ends up being a fraction of the cost of Excel. They packed it extremely well and I received it in just over a week from the time I placed my order. I'll definitely buy from them again when I finally finish the original bottle.

I agree about the packaging and all, great service and good stuff, but watch the shipping. I also bought 450 mL of the 50% biological grade and was charged 31 bucks for shipping. Not good!

jcali10 · 03-16-2008, 07:48 AM

I know this thread has been around a whille, but it was recently brought to my attention, so I just wanted to say that I'm going to try it out. I'm always interested in alternative and economical ways to do things.

I ordered MetriCide 14 from the following website:
http://http://medicalindustries.net/...Solutions.html
The following link contains the manufacturers MSDS for MetriCide14, listed as MetriCide.pdf. http://www.metrex.com/index/metrex-e...sds-us-english
It's a solution of glutaraldehyde and water, and it is in a concentration you can use straight out of the bottle, it's a 2.6% solution.

MatPat · 03-24-2008, 10:14 AM

It seems like a lot of people are having this stuff shipped for some reason. With the exception of the 50% solution, most of the time it will be available locally (unless you live in a very small town) at any medical/dental supply place. A quick glance at your Yellow Pages should save people a little bit of shipping expense

helgymatt · 03-24-2008, 10:50 AM

Not available locally here...Des Moines, IA
Population - over 1/2 Million.

oregon aqua · 03-24-2008, 07:31 PM

i posted this a while ago on another thread thought some people might be interested.

Quote:

i just found this http://www.glerl.noaa.gov/pubs/fullt...5/20050003.pdf
it talks about the effects of glutaraldehyde excel's main ingredient. its from the govt agency NOAA.\
when i found this paragraph i was very happy.

"Chronic toxicity bioassays were employed to assess
the potential for environmental effects associated
with the release of the biocide, glutaraldehyde. Of the
three organisms tested, the algal species, P. subcapitata,
was most sensitive. The IC50 estimate of approximately
1.5 mg L−1 (ranging from 1.0 to 1.8 mg L−1)
indicates that low concentrations of glutaraldehyde can
dramatically impact growth. In addition, the narrow
interval between the IC25 and IC50 suggests a steep
concentration–response curve; small increases in glutaraldehyde
concentration would be expected to cause
a disproportionate decrease in growth."

its a good read if i just skip the over scienced parts

from http://www.aquaticplantcentral.com/f...html#post26623

oregon aqua · 03-24-2008, 07:35 PM

ohhhhhh yeah. and this the reason excel works for the carbon supplement

this is what happens to glut after introduction to H2O. i forget how long they said it took but i think it was like 2 or 3 hours per step?

hl0107 · 03-27-2008, 04:49 PM

Thanks!!!
Anyone have any experience using glutaraldehyde in a tank with Subwassertang.