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Unread 03/17/2014, 10:26 PM   #2
Michael Hoaster
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Join Date: Feb 2004
Location: Boulder, CO
Posts: 5,807
Substrate for Seagrass

Ok, so I did some research on Eco Complete. It's basically a lava-based sand/gravel of varied sizes. It's also basically inert, so doesn't directly contribute any nutrients. But it does have a high CEC, or cation exchange capacity, which (I think) means it can absorb/store nutrients that are added and release them as needed. Which I'm guessing (hoping) is a good thing.

So, overall, I'd say that Eco Complete is not as good a substrate as I'd hoped, but not a bad choice as a percentage of my substrate makeup. What I think helps favor MY Eco Complete, is the 5 or 6 years of accumulated mulm I've got in there. Yay pooh and stuff!

I'd welcome anyone else's thoughts, experiences, insights.

I really want to get this right, because I think getting the seagrass established is going to be one of the biggest challenges of this tank.


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Current Tank Info: 180g Seagrass Sandbar Lagoon, START DATE November 28, 2018
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