glutaraldehyde instead of excel - South Western Ohio Aquatic Plant Enthusiasts - Aquatic Plant Central

Go Back   Aquatic Plant Central > Local or Regional Clubs - (Click button on right to expand) > South Western Ohio Aquatic Plant Enthusiasts

South Western Ohio Aquatic Plant Enthusiasts A forum for the South Western Ohio Aquatic Plant Enthusiasts club.

Reply
 
LinkBack Thread Tools Display Modes
Old 09-30-2006, 09:54 AM   #1 (permalink)
Member
 
Join Date: Jan 2006
Location: washington c. h. ohio
Posts: 83
iTrader Ratings: 1
iTrader Positive Rating: 100%
allen is a regular member
Default glutaraldehyde instead of excel

Hey guys

Last week I have been using glutaraldehde in place of excel.I'm using a 2.8% solution.It's suppose to be about the same as excel but alot cheaper.I paid $16.95 a gallon.

I tried it in two tanks,a 10 gal. planted and a 60gal. planted.
It had a different effect in each tank on some of the same plants.Below I'll list each tank with the dose and effect I noticed.


60gal.,192 watts,11hours lights on,co2 injected,ferts daily,plants are red tiger lotus,rotalia indica,sword,ludwigia,anubias,hair grass and crypts,34 fish.

I dosed 30ml 9/23/6 after a water change then 10ml daily.
On 9/25/6 the angelfish spawned so it seems to have no effect on the fish.
9/27/6 the sword plant started growing fast.3-4" growth of new leaves daily.this plant has not grown much in the last 3 weeks.

It's been a week so far,water is clear,plants are growing fast and the little bit of algae I had is gone.

riccia is ok.

Now for the 10gal.,30 watts 8-10 hours,no co2,ferts daily,plants are sword,red tiger lotus,ludwigia,and bolbitis,tiger barb fry,cherry shrimp and alot of hair algae.

I dosed this tank heavier to see what would happen.
5ml daily.
9/23/6 dosed at 10:00am and by 7:00pm algae shows signs of dying.fish and shrimp are fine.

9/24/6 riccia is dying off.All the algae dead.fish are fine.water is a little cloudy.

9/25/6 water is clear.I have a few strands of moss in this tank.I think it's java moss.It is growing very fast.

9/30/6 moss has grown around 10" this week.this moss has been in here for 8 months without much growth.The bolbitis is a little darker green and the leaves have widened.Looks healthier then it ever has.

Other than the riccia dying and the water turning cloudy one day it seems to work well.

If I notice anything else I'll add it to this post.

Allen
allen is offline   Reply With Quote

Advertisement [Remove Advertisement]
Old 09-30-2006, 10:27 AM   #2 (permalink)
Senior Member
 
Gomer's Avatar
 
Join Date: Feb 2004
Location: In the desert
Posts: 2,330
iTrader Ratings: 5
iTrader Positive Rating: 100%
Gomer is a regular member
Default

Quote:
Originally Posted by allen View Post
Other than the riccia dying...

You say that like it is a bad thing LOL. That would have been a MAJOR bonus while spending months eradicating it from my tanks. One spec and it keeps going LOL.
Gomer is offline   Reply With Quote
Old 09-30-2006, 11:07 AM   #3 (permalink)
Senior Member
 
dennis's Avatar
 
Join Date: Mar 2004
Location: Leverett, Mass
Posts: 2,988
iTrader Ratings: 47
iTrader Positive Rating: 100%
dennis is a regular member
Default

Allen,

That sounds good. Where did you get the glutaraldehyde?
dennis is offline   Reply With Quote
 
Old 09-30-2006, 01:03 PM   #4 (permalink)
Junior Member
 
egementt's Avatar
 
Join Date: Jun 2006
Location: Istanbul
Posts: 22
iTrader Ratings: 0
egementt is a regular member
Default

I'm really shocked by this. I mean I know that glutaraldehyde is a strong disinfectant used in hospital etc. It's also toxic. I'm really shocked that it doesn't harm the aquatic life. It's probably about the doses. This really interests me. Thank you and I'll be waiting for your next posts.
egementt is offline   Reply With Quote
Old 09-30-2006, 04:55 PM   #5 (permalink)
Senior Member
 
dennis's Avatar
 
Join Date: Mar 2004
Location: Leverett, Mass
Posts: 2,988
iTrader Ratings: 47
iTrader Positive Rating: 100%
dennis is a regular member
Default

I was reading some companies MSDS sheet for it and it mentioned something like 'toxic to aquatic life in at .1 to 1.0mg/l for the most sensative species'. They never mentioned the species but a guess is that the cloudy water some get with high doses of excel is due to a die off of bacteria.

If I have done the math right (I probably have not ) then a 30 ml dose of 2% solution in 60 gallons is .26mg/l, pretty low on their "toxicity scale". That would lead me to belive that the most sensative organisms would be affected. Higher dosing woudl robably affect shrimp or snails, and lastly fish.

Using the same math, 5ml in 10 gallons is about .3mg/l. As I said though, I may not have converted to mg in a 2% solution correctly. I based my figuring on 100g/mol, or 10^5 mg/mol and assumed that one could figure a 2% mol solution in 1liter H2O. Please tell me if I am wrong.
dennis is offline   Reply With Quote
Old 09-30-2006, 05:24 PM   #6 (permalink)
Moderator
 
bigstick120's Avatar
 
Join Date: Mar 2005
Location: Maryland
Posts: 3,201
iTrader Ratings: 190
iTrader Positive Rating: 100%
bigstick120 is a valuable member of the community bigstick120 is a valuable member of the community
Default

I remember reading some where about a guy that dose glutaraldehyde to a 100 gallon tank every day, just a few drops, I dont know the concentration but he said his tank was crystal clear and completly algae free, and he did this for sometime. Maybe BS. I think it was somewhere on this site
bigstick120 is offline   Reply With Quote
Old 09-30-2006, 05:33 PM   #7 (permalink)
Moderator
 
hoppycalif's Avatar
 
Join Date: Apr 2005
Location: Brentwood, CA, USA
Posts: 6,799
iTrader Ratings: 22
iTrader Positive Rating: 100%
hoppycalif is a valuable member of the community hoppycalif is a valuable member of the community hoppycalif is a valuable member of the community
Default

Sorry, in advance, but here is another testimonial: An argument settled at last
This was posted at APD last week.
hoppycalif is offline   Reply With Quote
Old 09-30-2006, 06:11 PM   #8 (permalink)
Senior Member
 
dennis's Avatar
 
Join Date: Mar 2004
Location: Leverett, Mass
Posts: 2,988
iTrader Ratings: 47
iTrader Positive Rating: 100%
dennis is a regular member
Default

Hoppy,

not sure if I follow how that relates, though it is amusing. If you are refering to using Excel as an "algae repellent or algaecide, that's not my intention. I really like excel but is very expensive in any quantity. If glutaraldehyde is an economical substitute, I'm all for it
dennis is offline   Reply With Quote
Old 09-30-2006, 06:14 PM   #9 (permalink)
Senior Member
 
sarahbobarah's Avatar
 
Join Date: Sep 2005
Location: Sunnyvale
Posts: 220
iTrader Ratings: 1
iTrader Positive Rating: 100%
sarahbobarah is a regular member
Default

Is this why I shouldn't breathe in the smell of excel? Makes me kinda woozy.
sarahbobarah is offline   Reply With Quote
Old 09-30-2006, 06:59 PM   #10 (permalink)
Member
 
Join Date: Jun 2005
Posts: 34
iTrader Ratings: 1
iTrader Positive Rating: 100%
5380 is a regular member
Default

I thought about doing this last summer, but I decided against it thinking that they glutaraldehyde polymer would be much less pungent smelling than normal glutaraldehyde, usually aldehydes, amines, and sulfur containing chemicals stink. On a scale of 1-10 how bad is the smell? A pharmacist can order this for you, the product PDcare is available in the compounding catalogs.

The wooziness is probably a direct result of the irritant on the cells your nose. There is a review article that goes into the effects it can have on medical personell that use the stuff all the time, and have high exposure.

Last edited by 5380; 09-30-2006 at 07:11 PM..
5380 is offline   Reply With Quote
Reply


Aquatic Plant Central > Local or Regional Clubs - (Click button on right to expand) > South Western Ohio Aquatic Plant Enthusiasts > glutaraldehyde instead of excel

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 08:58 AM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.

Search Engine Friendly URLs by vBSEO 3.6.1