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Interesting - I’ve not had pla long term in a salt water tank, it was Internet research has suggested degradation would occur. But it makes sense, there are bacteria that need a carbon source and pla looks like just the right sort of compound to provide it for them (similar to vodka dosing or ‘bio p…
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Smashing, thank you. I shall try some PETG.
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That will be my fall back, I tend to use glass marbles if I need to weight things down, but it would be more elegant if I could just print in a denser plastic, if one exists.
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Thank you for your suggestion - unfortunately marine life is very sensitive to metals, particularly copper. I’ll have a look at the steel one, though would even stainless steel not corrode if constantly exposed to seawater?
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I am building things to go in saltwater aquariums, so they need to sink, to be more dense than 34ppt seawater (roughly the same as the sea). PLA is no good as it will degrade due to bacterial action, ABS floats, I don’t want to trial and error every type until I find one that sinks! I am using the …
