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        <title>PLA in aquarium?</title>
        <description> Is it safe to use printed PLA objects in a fishtank (containing tropical fish and aquatic frogs)?</description>
        <link>https://reprap.org/forum/read.php?1,131093,131093#msg-131093</link>
        <lastBuildDate>Mon, 20 Jul 2026 02:48:08 -0400</lastBuildDate>
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            <guid>https://reprap.org/forum/read.php?1,131093,132096#msg-132096</guid>
            <title>Re: PLA in aquarium?</title>
            <link>https://reprap.org/forum/read.php?1,131093,132096#msg-132096</link>
            <description><![CDATA[ I have printed aquarium stuff in the past but once I have my print I use Smooth-On molding and plastic products to make the object out of aquarium (and reef) safe plastic.]]></description>
            <dc:creator>kwdelre</dc:creator>
            <category>General</category>
            <pubDate>Wed, 09 May 2012 21:41:09 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?1,131093,131698#msg-131698</guid>
            <title>Re: PLA in aquarium?</title>
            <link>https://reprap.org/forum/read.php?1,131093,131698#msg-131698</link>
            <description><![CDATA[ The reason why PLA melts/deforms in dishwashers is due to the hot water.]]></description>
            <dc:creator>Nudel</dc:creator>
            <category>General</category>
            <pubDate>Mon, 07 May 2012 05:30:54 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?1,131093,131668#msg-131668</guid>
            <title>Re: PLA in aquarium?</title>
            <link>https://reprap.org/forum/read.php?1,131093,131668#msg-131668</link>
            <description><![CDATA[ PLA will dissolve in high alkine solutions, dishwashing detergents are usually very high in alkalinity so thats why it dissolves. PLA is safe in freshwater fishtanks where kh is 0-3dkH but does not do well in saltwater aquariums where the kh is 8-11dkh. There is a product called biopellets in the aquarium industry, and it is a plastic polymer very simular to PLA that bacteria consumes, I would not suggest using PLA inside a fishtank.<br />
<br />
only reason I know this is because I used to part-own an aquarium store:)]]></description>
            <dc:creator>ECSuyu</dc:creator>
            <category>General</category>
            <pubDate>Mon, 07 May 2012 02:15:20 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?1,131093,131666#msg-131666</guid>
            <title>Re: PLA in aquarium?</title>
            <link>https://reprap.org/forum/read.php?1,131093,131666#msg-131666</link>
            <description><![CDATA[ Don't know but sister in law tried putting a PLA object in the dishwasher and wondered why it melted]]></description>
            <dc:creator>NelsonRap</dc:creator>
            <category>General</category>
            <pubDate>Mon, 07 May 2012 02:01:22 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?1,131093,131571#msg-131571</guid>
            <title>Re: PLA in aquarium?</title>
            <link>https://reprap.org/forum/read.php?1,131093,131571#msg-131571</link>
            <description><![CDATA[ It is safe, PLA won't be composed unles on :<br />
high temperature, virus(bateria),acid value,oxygen.<br />
<br />
<br />
In normal condition, PLA is hard than PC ,PP.]]></description>
            <dc:creator>Anonymous User</dc:creator>
            <category>General</category>
            <pubDate>Sun, 06 May 2012 03:27:16 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?1,131093,131096#msg-131096</guid>
            <title>Re: PLA in aquarium?</title>
            <link>https://reprap.org/forum/read.php?1,131093,131096#msg-131096</link>
            <description><![CDATA[ Safe I am not sure but it does break down. To compost it they recommend that it be moist and around 50c.]]></description>
            <dc:creator>Sublime</dc:creator>
            <category>General</category>
            <pubDate>Wed, 02 May 2012 17:55:57 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?1,131093,131093#msg-131093</guid>
            <title>PLA in aquarium?</title>
            <link>https://reprap.org/forum/read.php?1,131093,131093#msg-131093</link>
            <description><![CDATA[ Is it safe to use printed PLA objects in a fishtank (containing tropical fish and aquatic frogs)?]]></description>
            <dc:creator>ebcdic</dc:creator>
            <category>General</category>
            <pubDate>Wed, 02 May 2012 17:43:58 -0400</pubDate>
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