Ferts for my tank? - The Planted Tank Forum
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post #1 of 6 (permalink) Old 06-08-2011, 09:15 PM Thread Starter
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Ferts for my tank?

Hey guys, hope all is well.

Last night I went to the local petsmart and apparently they were moving and so had a 50% sale going on. Most everything was gone but there were some bottles of Flourish Comprehensive Supplement there for 6 or so bucks each. I went ahead and picked on up...even if I didn't particularly need it - damn sales psychology.

My question is, will adding it do much good to my tank?

Its a 20G with primarily mosses (which I'm not sure will benefit from it) and some ferns. How beneficial would it be? It's low light, low tech...no CO2, no nada.

I do dose excel twice a week.

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post #2 of 6 (permalink) Old 06-08-2011, 09:49 PM
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Tank Fertilizer

Hello astro...

You should be careful with the SeaChem ferts. Some have an industrial form of carbon called "Gluteraldehyde" or "Glut". Carbon is very good for complex aquatic plants, but can be toxic to ferns, mosses, and certain varieties of Vallisneria plants.

Some fishkeepers use the "Glut" in higher doses to control algae.

So, I'd recommend checking the ingredients on the bottle or getting on line and looking up the content information before putting it into the tank.

Just an opinion.

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post #3 of 6 (permalink) Old 06-08-2011, 09:53 PM
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Personally, I would add the Flourish Comprehensive Supplement. It's not going to hurt, but it will help. It's a weak fertilizer, but it will definitely supplement some nutrients for your mosses.

Without Algae, death of mankind would be inevitable.

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post #4 of 6 (permalink) Old 06-08-2011, 10:14 PM
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Florish comp is not a weak fertilizer. Its a trace mix similar to csm+b..

Its fine to use but if your tank has a low bio load i'd also recommend using macro's..Seachems line also contains these..Nitrogen, Potassium, Phosphates..Since its a low light setup just follow directions on bottle.
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post #5 of 6 (permalink) Old 06-08-2011, 10:52 PM
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+1 there is no "glut" in comprehensive. It is pretty much a micro mix.
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post #6 of 6 (permalink) Old 06-09-2011, 01:38 AM Thread Starter
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Thanks for your replies guys. I think I'll stick to a once - a - week dose for the comprehensive.

Also, my bio load is actually quite big - in fact I'm probably slightly overstocked in this tank - with proper feeding (meaning no overfeeding!) its been running extremely well. I may look into other ferts but hopefully the bioload meets the macro requirements for the plants.

Thanks again!
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