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Discussion Starter #1
I see all the time people are putting Oscomote Plus in their substrate as a sort of slow release root tab.. I looked a few places and I couldn't find Oscomote Plus, only the regular kind, and I know the 'Plus' variety because it does include both some micros and macros. I know Oscomote Plus is supposed to be safe, except possibly deadly to shrimp but I just have one amano shrimp, and although I don't want him to die, I am willing to sacrifice the one for healthy sword plants.

Here's a PDF I found with Oscomote Plus's analysis: http://www.alliedbotanical.com/pdf/Osmocote15912.pdf
It is on the second page.. I'd copy and paste if I could.

And then here's Ironite Plus for comparison:

Total Nitrogen 12% (Ammoniacal Nitrogen)
Available Phosphate 10%
Soluble Potash 10%
Sulfur 9%
Boron .02%
Total Iron 2%
Total Manganese .10% (Water soluble Man .03%)
Molybdenum .0005%
Total Zinc .10% (water soluble Zn .02%)

It says derived from Ammonium Sulfate, Ammonium Phosphate, Muriate of Potash, Sodium Nitrate, Iron Sucrate, Iron Oxide, Manganese Sulfate, Manganese Oxide, Sodium Molybdate, Zinc Sulfate, Zinc Oxide


Was planning on popping some in some ice cube trays, freezing them with tank water, and sticking them in the substrate below my swords I've got coming in the mail.
 

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Discussion Starter #2
I read a couple places online not to use it because it does contain arsenic..

But so does oscomote plus? Here's another website with a more detailed analysis:

Oscomote Plus:
Fertilizer Product Information

Ironite Plus
Fertilizer Product Information


Ironite does have more, so perhaps that does make a different, but are either of these safe then?
 

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I have seen tons of ppl using Oscomote Plus. They normally put them in size 00 capsules and put them in the tank every 1-2 square feet I believe.
 

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Discussion Starter #4
Yeah, I've definitely seen it.. But does it cause fish cancer?

I've seen multiple people say 'use oscomote because it doesn't have arsenic'.. But it does. I don't know of the lesser amount makes it safe? :/

I'm sort of scared to use either. I hear the Seachem tabs are next to useless, and these are obviously cheaper.
I just haven't found any Oscomote Plus yet, but now I'm worried about using them at all.
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I have a lot of people around me using it. I'm not sure about fishcancer... they definitely care more for their plants :)
 

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Discussion Starter #6
That's actually exactly what I was thinking.. I know lots of people with planted tanks use it, but it's mostly people who put their plants before their fish. I put the fish before plants; I have plants to make my fish feel safe and happy.
 

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Sorry had to remove your link and edit your post, as it is againt TFKforum rules to post links to other forums...

My friend had a 100+ nitrate reading from a few too many osmocote. He didn't lose any stock to the nitrate, but it made his betta jump out of the tank in search for better waters >.<
 

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Discussion Starter #9
Oops, so so sorry. But yes. Multiple people having problems with that. Doesn't seem worth the risk.

I'll have to look for other options that are specifically for use in aquarium.
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Discussion Starter #11
I... Don't know. Looking at the ingredients they don't seem useless. And I know they do last a couple weeks. I've read they've got mostly calcium and not a significant amount of other nutrients..esp NPK.

I don't know what the plants specifically need, but I think I might start buying root tabs from aquariumplants.com They are cheaper than flourish and the plants I got from them were in excellent condition.. Assuming the fertilize with their own product.
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