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Discussion Starter · #1 · (Edited)
Word on the forum is that Hydroton is a great media, but has anyone used it as a substrate?

I picked some up in Asia a couple years ago. Starting my 20 gallon and thinking about turning it into a heavily planted high tech setup. I have some older ADA amazonia that is starting to break down a bit, so thinking of layering the hydroton over it it keep it down. The spheres are 3 mm in diameter.

 

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I don't know about the stuff you have, but the hydroton I use for my aquaponics is very light and will float. I use it for a soil-less garden bed to grow vegetables out of my pond and it works great for that purpose. Test it out. If it sinks, and you're just using it as a topper it should work just fine, depending on the type of plants you keep.
 

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I will be using my hydroton supply for my own aquaponics system this spring. It's also very light and floats, so not suitable for a planted tank. If yours sinks then it may work.
 
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