Substrate cap - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 01-20-2014, 03:59 PM Thread Starter
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Substrate cap

I have a tank with flourite substrate and I want to cap it with Azoo Plant Grower, but I have been told that the smaller grains of the Azoo substrate will over time end up at the bottom of the tank while the bigger grains of the Flourite will rise to the top.

Anyone experience this? Am I setting myself up for failure if I want the azoo on top?
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post #2 of 6 (permalink) Old 01-20-2014, 08:25 PM
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I have used Fluorite before and never capped it. Why do you feel this is necessary ? The problem I have with the whole idea of capping is that you are more than likely going to move plants around at some point. When you pull up a rooted plant you will be amazed at how extensive the root system can be. In other words, you are defiantly going to disturb the substrate layers. Its hard not to do this when you are just vacuuming the tank during a water change.
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post #3 of 6 (permalink) Old 01-20-2014, 08:53 PM Thread Starter
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It's a shrimp tank so mostly moss and the "root" plants are anubias and java ferns so nothing in the substrate. I want to add the new substrate to buffer the PH down.
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post #4 of 6 (permalink) Old 01-21-2014, 05:58 AM
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Yeah, I was going to cap my fluorite and eco complete with sand but it would definitely mix so there was no point for me to do so.


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post #5 of 6 (permalink) Old 01-21-2014, 10:04 PM
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I don't really think there is any reason to cap flourite.

I actually use flourite for a cap on a dirted tank.
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post #6 of 6 (permalink) Old 01-21-2014, 11:48 PM
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Quote:
Originally Posted by greenteam View Post
It's a shrimp tank so mostly moss and the "root" plants are anubias and java ferns so nothing in the substrate. I want to add the new substrate to buffer the PH down.
What kind of shrimp are you keeping? RCS? CRS? What PH are you having now and at what PH do you want to sustain?
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