Metricide 14 to replace the Excel dosing - Page 6 - The Planted Tank Forum
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post #76 of 122 (permalink) Old 03-08-2013, 05:12 AM
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Yeah ... that's me too. I had to Google Metricide shelf life or expiration date to make sure it would stay good until I used it all. The bottle I got has expiration date of 8/2014 .. should be gone by then.
I know Excel can has no expiration date.

Can an expired Metricide still be used?
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post #77 of 122 (permalink) Old 03-08-2013, 02:17 PM
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I'm thinking that the exp date on Metricide is for medical use - after that date they wouldn't guarantee it's sterilization properties.

I would still use it, but others will disagree.

I've actually kicked WAY back on my usage - down to a half dose once a week. Just an experiment to see if some of the plants I've had trouble with will grow. (Swords and stuff. Don't have any true jungle vals left, but some smaller val-like 'grasses' seem to be perking up with less) If I ever boost the lights I might have to kick it up again.

PS: I've been using Metricide in one tank and 'real' excel in the small tank - both seem to respond the same.
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post #78 of 122 (permalink) Old 03-08-2013, 02:46 PM
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Re: Metricide 14 to replace the Excel dosing

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Originally Posted by jbrady33 View Post
PS: I've been using Metricide in one tank and 'real' excel in the small tank - both seem to respond the same.
Metricide is amazing. I had recently a bad hair algae growing in my moss wall and and it just hard to remove. The moss comes along when I tried to pull them out. I dose as much as 30ml everyday on my 20 and they are slowly vanishing.

I just bought another gal. last night on eebay for a great deal $20 shipped. Check out "other site" thread for the item no.



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post #79 of 122 (permalink) Old 04-04-2013, 06:28 PM
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IS there any negative effects of dosing a medium light low tech tank?

Is it shrimp safe? I don't think i would dose daily.. but probably at water changes.
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post #80 of 122 (permalink) Old 04-04-2013, 09:09 PM
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IS there any negative effects of dosing a medium light low tech tank?
As with many other things, if overdosed, it can be harmful.

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Is it shrimp safe? I don't think i would dose daily.. but probably at water changes.
Yes. I have used diluted glutaraldehyde (which is what Metricide 14 is) with no problems in a shrimp aquarium.

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post #81 of 122 (permalink) Old 04-04-2013, 09:47 PM
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Thanks Darkblade48, How many ml would you recommend dosing for a 84G tank? From what i read its a bit stronger then excel.. so i'm thinking about a half dosage when going of the excel specs.
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post #82 of 122 (permalink) Old 04-23-2013, 02:53 AM
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Is it shrimp safe? Yes, but don't over dose. I've made this mistake twice. And twice it wiped out my Oebt colony. Just watch it when you're dosing. It's fine.
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post #83 of 122 (permalink) Old 04-23-2013, 04:47 AM
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post #84 of 122 (permalink) Old 04-23-2013, 07:00 AM
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Thanks Darkblade48, How many ml would you recommend dosing for a 84G tank? From what i read its a bit stronger then excel.. so i'm thinking about a half dosage when going of the excel specs.
There is a dosing calculator that you can find quite easily online.

You can also use the formula m1v1 = m2v2 (the calculator uses the same formula) to determine how much you need to dose.

m1 = concentration of first chemical
v1 = volume of first chemical
m2 = concentration of second chemical
v2 = volume of second chemical

With the concentrations of Excel and Metricide 14 being known (as well as the normal dosing rates for Excel), solving the volume of Metricide 14 to dose becomes a routine algebraic exercise.

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post #85 of 122 (permalink) Old 04-26-2013, 06:08 AM
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So, here is a question, and I apologize if this has been asked and answered a million times already: If it is now known what Excel is (glutaraldehyde) and if Seachem has no patent on it, how come we are not seeing a) an explosion of glutaraldehyde products in the aquarium market (after all, there must be a dozen different dechlorinators that do all the same thing), and b) why is the price of Excel not going down?

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post #86 of 122 (permalink) Old 04-26-2013, 06:23 AM
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Because people keep buying it.... and are afraid to use a 'chemical disinfectant' in their fish tank
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post #87 of 122 (permalink) Old 04-26-2013, 06:55 AM
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why is the price of Excel not going down?
There are still lots of people who doesnt know about Metricide 14. Even some people in forums wanted to stick w/ Excel.
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post #88 of 122 (permalink) Old 04-26-2013, 12:02 PM
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And there are others, API has "Co2 Booster", not 100% sue but I think it is gut also
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post #89 of 122 (permalink) Old 04-26-2013, 03:06 PM
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I see. I understand Excel still sells well. I am just surprised the market isn't being totally flooded with similar products, given what a moneymaker Excel must be for Seachem.

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post #90 of 122 (permalink) Old 05-27-2013, 02:37 AM
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Metricide 14 Dosing

I wanna use metricide 14 undiluted n flourish in my 5gal custom tank I have flame moss pennywort, 3 swords (small ones), 2 jungle vals, 4 stems of myro matt, for fish I have 2 Cory cats, 10 rili n 5 red shrimp, an a bunch of guppies. Question is how much metricide to use every other day? I never used flourish excel so I don't know how excel to dose unless its the same instructions on both flourish and flourish excel?

Last edited by newbieplanter; 05-27-2013 at 08:38 AM. Reason: Adding
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