Adding substrate to established tank - The Planted Tank Forum
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post #1 of 2 (permalink) Old 02-14-2012, 07:57 PM Thread Starter
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Adding substrate to established tank

As the title says, I want to add new plant friendly substrate to a 90 gallon tank that has already been up and running for more than a year now. I have regular aquarium gravel in the tank already, but it's only about an inch or less deep. What would be a good substrate I can add that won't harm the fish that are already in there? (I'm not too worried about cloudiness, as long as it's safe) I'm also not sure if I should completely replace the gravel, put new stuff over it, or just mix in a new substrate. I'm just looking to do a low tech right now. I have experience with reef tanks and fish only fresh water, but I've never done a planted aquarium before and want to start out slow.
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post #2 of 2 (permalink) Old 02-14-2012, 08:22 PM
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Is the tank already planted? What is the existing stocking level?

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