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Just got turned onto this link: great post with formulas from Scorpio over at AquaPetz, who operates with resulting ppm in the aquarium instead of the % in solution: http://aquapetz.com/viewtopic.php?f=18&t=102

I like this thinking as it brings us to thinking of Glut as yet another supplement (like trace dosing, or macro dosing, or whatever). For example, imagine a calculator that let you dose 1 bottle cap (5mL) into any size aquarium for the target Glut dose. I wonder if folks have accepted Glut to the point this is useful and not confusing, though.
 

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Hi vuslat,

Welcome to APC! To avoid confusion I would recommend you purchase the 2% solution at first since it is very close to the 1.5% concentration in Seachem Excel.

Normal Dosing:
On initial use or after a major (> 40%) water change, use 4 mL for every 40 L (10 gallons*). Thereafter use 4 mL for every 200 L (50 gallons*) daily or every other day.

For Algacide Properties:
On initial use or after a major (> 40%) water change, use 4 mL for every 40 L (10 gallons*). Thereafter use 8 mL for every 200 L (50 gallons*) daily.

Remember some plants do not respond well to the use of Excel; especially Vallisneria and Ceratophyllum. Please report back with your results!

BTW, my wife and I really enjoyed Turkey when we visited there; especially the wonderful, friendly, people and spectacular history!
 

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Hi vuslat,

If you decide to use Excel/Glut I would start with the "normal dosing" level. Some moss species do not do well with Excel/glutaraldehyde (just like the Vallisneria and Ceratophyllum). I have lost moss species even when dosing Excel/glut even at the "normal dosing" level.

Have you tried other methods to deal with your hair algae? I find that if I reduce my lighting period, increase my 50% water changes to 2 or 3 times a week, and add a Siamese Algae Eater (Crossocheilus oblongus) I can usually get hair algae under control.
 

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I've tried all the methods. There was hair algae in the Java Moss, Taivan Moss, Sigapore Moss aquarium plants. I did all the solutions, but 3 months is not lost. Not all iron and micro trace element fertilizers. Only used for NPK. The values used are as follows.Excel local practice is dying plants. Try GLUT.Ecxel effective or glutaraldehyde?

My tank measurements:
Nitrate: 10 ppm
Phosphate: 1 ppm
Potassium: 20 ppm
Lighting: 4 * 30 watts Slyvania Aquastar + Grolux
Lighting Time: 8 hours (4 +3 +4)
Tank temperature: 25 C
 

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Hi vuslat,

If you are asking me if Seachem Excel and glutaraldehyde (glut) are basically the same - the answer is yes.

Hair algae in moss is very difficult to eliminate. Sometimes the best thing to do is start new moss clumps using small quantities of your existing moss that you clean well to remove all the hair algae.
 

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I have question to those who use glutaraldehyde. Friend of mine is trying to get rid of BBA in his 40 gal tank and dosing Metricide 28. Nothing seems to change, he is dosing 20 ml every day, nothing at. BBA is still there. So does this thing really works as Excel? I took 1 sp. from his tank and now is in 20 gal tank with no other plants. I also tried dosing the same amount. 20 ml in 20 high tank. Still BBA is there? so what are we missing here? 1 thing I can think about is Instead of using RI/DO water we use plain NYC super soft water? Could this be the cause?

According to Wets calculator this is the mix ratio.

500ml container- 300ml of metricide and 200ml of RO/DI water?

While dosing this stuff, do I need to turn off water movement. filter, powerhead etc? This Metricide gallon was purchased a month ago, so i don't think it expired already and is stored in cool dark place under the counter.

Not only BBA, which is tough but also does nothing to GSA as well in his tank. If you need further more info. I can provide.
 

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Hi arjosh,

First, the calculations are correct. Metricide 28 is 2.5% glutaraldehyde and adding 200 ml of water to 300 ml of Metricide 28 will give you a 1.5% (Excel strength) solution.

In my experience GSA is not effected by Glutaraldehyde, adjusting my phosphate dosage seems to be showing some progress with that.

BBA is tough stuff! Typically I dose the Seachem recommended 'Initial dose' at water changes and 2X the recommended 'Daily dose'. If there is a heavy outbreak on plants I remove any leaves that are heavily affected. Any hardscapes, heaters, etc I remove from the 'scape and treat with 50/50 bleach/H2O and then scrub with a brush and use a very heavy treatment of Seachem Prime to nuetralize the bleach. For stubborn patches in the tank I turn of all filtration so the water becomes still and then "spot treat" the heavy areas 'painting' them with 1.5% glut and an oral dosing syringe. I am careful when 'spot treating' not to exceed the recommended ml dosage per gallon.

After the BBA dies then my SAE move in and eat the dead 'tufts' leaving me BBA free!
 

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Hey Roy

I understand all above you mentioned, My question is Will Metricide gives you the same effect of Excel ONLY if Diluted in RO/DI Water or it doesn't matter if its Tap water? In my observation this Metricide is less effective than Excel as I bought home a stem of Persicaria Ruby from a friend and dosed 20ml of metricide diluted of course in 20 gal tank but no other plants...Still BBA is in the stem.

When I used Excel a year or so ago for some BBA in Hygrophila sp. 'araguaia' leaves it (Excel) took care of BBA in 10 minutes turning it in Pink color and gone in few days...Shrimps took care of the rest.
 

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I mix according to wets calculator
I dose like so - everyday

40 gal - 20 ml
75 gal - 40 ml
55 gal - 30 ml
26 gal - 15 ml
BBA is nasty - best way I found was to apply with a syringe when doing a water changes. So when 50 % of the water is out I dose the usual amount plus another 10 ML directly to the BBA once all filters power heads etc are off & the tank has zero current. I try to bathe the area in a cloud of glut for at least 10 minutes. The next day its pink :) I have one particular set up that has more BBA than I like but I am sure it has to do with circulation - which is one of the reasons i am going to re scape that tank.
 

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Hi arjosh,

It does not matter if you dilute the Metricide in RO/DI or tap water the effect will be the same.

As for why a treatment may have worked one time and not the next has way too many variables to analyze including concentration, temperature, and health of the BBA prior to treatment just to name a few.
 

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I mix according to wets calculator
I dose like so - everyday

40 gal - 20 ml
75 gal - 40 ml
55 gal - 30 ml
26 gal - 15 ml
BBA is nasty - best way I found was to apply with a syringe when doing a water changes. So when 50 % of the water is out I dose the usual amount plus another 10 ML directly to the BBA once all filters power heads etc are off & the tank has zero current. I try to bathe the area in a cloud of glut for at least 10 minutes. The next day its pink :) I have one particular set up that has more BBA than I like but I am sure it has to do with circulation - which is one of the reasons i am going to re scape that tank.
Aren't you over over dosing?
Tips from Wets calculator Site...

-Common dosing is 1mL/10gal of this solution daily or every other day.
-Dose 5mL/10gal after water changes.
-Many folks double or triple the daily dose as an algaecide.
 
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