life span?
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Old 06-08-2004, 07:46 PM   #1
jtjumpshot
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life span?


I'm new here trying to learn and start my own planted tank. I'm just really interested in growing anachris so i dont have to keep going to the pet store and buying it.

The question is how long does the subrate last? When you use things like Fluorite or eco-complete, do you have to ever change it at all? May be a silly question that's why i never posted before. I tried to check the old post, but didn't find anything. Can anyone give me an idea?
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Old 06-08-2004, 09:37 PM   #2
Wasserpest
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Hey Jumpshot, welcome to the Planted Tank! Good question!

Most substrates last a very long time. They don't dissolve or get used up, and they can absorb and exchange nutrients. Perhaps like good wine... they become better as they age...
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Old 06-09-2004, 02:59 PM   #3
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flourite would eventually need replacing - but only when you hand the tank down to your grandkids in 50 years.
for our purposes, these 2 specialty plant substrates never 'go bad'.
something like laterite DOES need to be replaced, since it's more of a clay, and will dissolve over time.
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