Seachem Excel Killing Ceratophyllum - The Planted Tank Forum
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post #1 of 7 (permalink) Old 11-10-2015, 07:36 PM Thread Starter
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Question Seachem Excel Killing Ceratophyllum

I have been growing Ceratophyllum in a low tech tank without Co2, it has been an experiment sometimes it thrives sometimes it dies back (mostly after water changes). It has been doing good lately but I decided to try the product and its really not liking the Excel...any ideas?

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post #2 of 7 (permalink) Old 11-10-2015, 11:50 PM
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Originally Posted by Teebo View Post
I have been growing parrots feather in a low tech tank without Co2, it has been an experiment sometimes it thrives sometimes it dies back (mostly after water changes). It has been doing good lately but I decided to try the product and its really not liking the Excel...any ideas?
I'm sure you already thought of this, but, did you change lighting? I grow parrots feather in my tanks and have noticed it doesn't like a change in light. Doesn't seem to matter what the change is, whether from high to medium, or low to medium, or even if you forget to turn lights on for a day or two. It doesn't seem to like the change and dies back for a while until it gets used to it. I never use Excel, but have heard some good and some bad about it. Parrot feather is really beautiful. I hope it comes back for you. It is really hard to kill in my experience.
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post #3 of 7 (permalink) Old 11-11-2015, 03:31 AM Thread Starter
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No change in lighting, only factor seem to be water temp/nutrient level. I find it hard to kill but hard to get to flourish without dead spots on the stem
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post #4 of 7 (permalink) Old 11-13-2015, 05:55 AM Thread Starter
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Also, within days after starting the use of Excel I began to get a green growth on the gravel...any idea what this may be? A form of algae??
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post #5 of 7 (permalink) Old 11-20-2015, 08:31 PM Thread Starter
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Correction it is not Parrots Feather it is Ceratophyllum. Maybe dosing has to be on a strict schedule once the plant gets used to having it??

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post #6 of 7 (permalink) Old 02-14-2016, 09:45 PM Thread Starter
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Not to dig up an old topic, but without starting a new thread on Excel...can anyone tell me if they use Excel weekly instead of daily? Do you have to worry about CO2 fluctuations with Excel the way you do with compressed gas? I have a quarantine/overgrow tank in the basement that I would rather use weekly or not at all, I am not trying to speed up growth just keep things alive until I have room for them in other tanks or holding plants for friends.
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post #7 of 7 (permalink) Old 02-15-2016, 03:03 PM
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I am pretty sure that excel's 'lifespan' is only like 24 hours so it is gone no matter what within a day. If you cannot dose excel every day then it is not even worth bothering. Honestly I am skeptical about whether excel really helps all that much. IMO it is more of an algaecide than a source of carbon as I see no real benefit from using it vs not.
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