svetilda Posted September 9, 2016 Report Share Posted September 9, 2016 I was thinking how we utilise walnut leaves in shrimp tanks. Shrimp go crazy for the leaves! But what about walnut shell? Did anyone tried it? have any thoughts on it? Maybe Scott Fellman from Tannin Aquatics? If we can drop a hazelnut why not walnut shell? Too much of the good stuff inside makes it too strong? Quote Link to comment Share on other sites More sharing options...
oem Posted September 9, 2016 Report Share Posted September 9, 2016 Just a guess but I would be cautious of Black Walnuts shells. The outer husk that is removed from the nut is very acidic and has been used as a dye for years. The convoluted shell would hold quite a bit of this material. I'm sure boiling several times would help out, and all those crevices would be a good medium for biofilm growth. I'm thinking a shell that has been out in the weather one season then boiled might be a better option then fresh. Same thing for Butternuts. Carpathian and English walnuts have a smooth shell and still have that outer husk to watch out for. I actually like Black, Butternut and Hickory nuts as their flavor is more intense, but a bear to crack and harvest nut meats. Just my thoughts. svetilda 1 Quote Link to comment Share on other sites More sharing options...
Soothing Shrimp Posted September 9, 2016 Report Share Posted September 9, 2016 Interesting question. Crushed walnut shell substrate has been used for years in the pet community. Wonder what would happen in water? Quote Link to comment Share on other sites More sharing options...
Wygglz Posted September 9, 2016 Report Share Posted September 9, 2016 Oh Soothing... now that is opening a can of worms here. Over and over I've looked at a bag of substrate and said "I love the look of that"only to notice that it is ground walnut shells with visions of floating flotsam running through my head. Does it sink? Or would one have a 20 gallon glob of goo? Soothing Shrimp and Pneumonic 2 Quote Link to comment Share on other sites More sharing options...
Soothing Shrimp Posted September 9, 2016 Report Share Posted September 9, 2016 LOL Get a pitcher of water, some walnut substrate, your test kits- and let us know Wygglz. ;-) Wygglz 1 Quote Link to comment Share on other sites More sharing options...
oem Posted September 9, 2016 Report Share Posted September 9, 2016 I was thinking of doing just that with my Hydroton expanded clay pellets because it is "inert" for hydroponic use and took it at face value, but would not trust it for aquarium use without my own test. Anybody have an opinion? Soothing Shrimp 1 Quote Link to comment Share on other sites More sharing options...
oem Posted September 9, 2016 Report Share Posted September 9, 2016 10 hours ago, Wygglz said: Oh Soothing... now that is opening a can of worms here. Over and over I've looked at a bag of substrate and said "I love the look of that"only to notice that it is ground walnut shells with visions of floating flotsam running through my head. Does it sink? Or would one have a 20 gallon glob of goo? Like most organic products, I'm thinking it would sink after being saturated. I have seen walnut shells on the bottom of streams. Not sure how fast ground shells would return to the bottom after being stirred up in a tank though. Quote Link to comment Share on other sites More sharing options...
Aennedry Posted September 10, 2016 Report Share Posted September 10, 2016 The only "nut shells" I have used in my tanks are coconut. I have had no problems. =^._.^= Quote Link to comment Share on other sites More sharing options...
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