Reusing Substrate (Eco Complete?) - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 11-11-2017, 04:01 PM Thread Starter
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Reusing Substrate (Eco Complete?)

I have a bag of substrate I saved from a tank break down several years ago. I forgot I had it, so I was planning to use Black Diamond sand for the new set up, but if I can use what I already have, even better. I liked the sand because it was inert and wouldn't result in a ammonia spike like ADA Amazonia or something similar. My plan is to set up the tank heavily planted and minimize water changes.

Is there anything I should keep in mind reusing the old substrate? I know I rinsed it well and let it dry fully before I stored it. If I had to guess, I think it's probably Eco Complete but I don't remember for sure.
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post #2 of 5 (permalink) Old 11-11-2017, 05:31 PM
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The Eco will eventually make its way to the surface. So if you donít want to see it, then donít use it and get some more BDBS.

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post #3 of 5 (permalink) Old 11-11-2017, 05:55 PM Thread Starter
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The Eco will eventually make its way to the surface. So if you donít want to see it, then donít use it and get some more BDBS.
Thanks. I have enough to just reuse the old by itself and if I did sand I will use it alone also. I mostly wanting to make sure that I won't get any algae blooms/ammonia spikes/etc from reusing the old substrate. I have seen several people say Eco Complete is inert so if that is what it is I would think I would be OK...?
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post #4 of 5 (permalink) Old 11-11-2017, 08:59 PM
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Originally Posted by AutumnSun View Post
Thanks. I have enough to just reuse the old by itself and if I did sand I will use it alone also. I mostly wanting to make sure that I won't get any algae blooms/ammonia spikes/etc from reusing the old substrate. I have seen several people say Eco Complete is inert so if that is what it is I would think I would be OK...?
Itís lava rock, so yes itís inert. I dont believe what they state saying it has nutrients available to plants. It does however have the ability to soak up ferts for plants to use later on.

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post #5 of 5 (permalink) Old 11-11-2017, 09:44 PM
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I love Eco-Complete and yeah...it's just crushed lava rock. Unless something was added to it...there's no nutrients in the substrate and if it's old...anything that was in there is likely long gone anyways. I'd reuse it for sure. I was going to buy some more for my new tank but I found a much better deal on straight up lava rock sand that's not marketed towards the aquarium hobby which means much less $$$. As we all know...you can buy pool sand at Lowe's for a few bucks for 50#. Throw 20# in a bag with the word aquarium on it and sell it at the LFS and the price triples for half the amount.


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