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| Oyster shells in hydroponics http://byap.backyardmagazines.com/forum/viewtopic.php?f=1&t=30487 |
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| Author: | Pant [ May 15th, '19, 15:56 ] |
| Post subject: | Oyster shells in hydroponics |
Does anyone know if oyster shells will work well in a flood and drain system? My interests are in finding free lite weight media for my AQUAPONICS SYSTEM. I'm also thinking walnut shell might be good. Any suggestions good people? Thanks |
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| Author: | 7341 [ May 17th, '19, 16:03 ] |
| Post subject: | Re: Oyster shells in hydroponics |
Oyster shells are mostly Calcium carbonate,it will buffer the systems PH.But I've read that once the waters PH reaches 7.2 it stops  .You would want the PH a bit lower than that (depending what plants you're growing).Walnut shell,I don't know exactly what it is.Is it inert & will it rot? |
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