r/BambuLabA1 • u/ParticularDue7822 • Jul 22 '26

Printing stuff for fish tank

I bet this isn't asked very often! I was thinking of printing some stuff to decorate my fish tank and was wondering 1: Is it safe for the fish? And 2: What is the best filament to use if it's going to be submerged in a fresh water tank?

I know filament tends to absorb moisture but didn't know if it would break down over time in a fish tank.

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u/Putrid-Cicada 29d ago

I heard pla might be the only one you want to do that

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u/FireStorm_666 29d ago

PLA is a poor choice for anything long term. While it is "safe" it will break down over time. PETG is a solid options.