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02/21/2011, 11:21 AM | #1 |
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polyresin decorations
those polyresin ornaments for aquariums: are they always safe for both fresh AND saltwater? Or are the saltwater ones 'special' in some way?
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Karin Current Tank Info: 215g Caribbean Inspired Reef with Shadowbox |
02/21/2011, 11:43 AM | #2 |
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be very careful with those decorations. Leeching is an issue with some manufacturers I heard from an aquarium tech who maintains some very large commercial systems. They always use the fake stuff. The fish were getting sick all with the same thing. I have forgotten now what it was as this was a few years ago but they finally traced it to a decoration manufacturer. One of the color resins was leeching toxic crap into the water. Just something you may want to be aware of before you buy.
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10 years running - 90 gal Tech Tank, 48x18x24/ 30 gal sump/ BK 180 mini/ 3 AI Sol Blues/ DSB / UV / Tunze Wave Box/ APEX-Lite controller/ dosing pumps on the way/ Goldfish |
02/21/2011, 11:51 AM | #3 |
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ugh.
that's what I was afraid of. I am wanting to do a biotope with mangroves. Of course there will be lots of real mangroves in it but I was hoping to add a big 'mangrove root' to the display. Saw some made from polyresin but of course also don't want to take a chance...
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Karin Current Tank Info: 215g Caribbean Inspired Reef with Shadowbox |
02/21/2011, 07:06 PM | #4 |
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I wouldn't trust them, either.
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Jonathan Bertoni |
02/22/2011, 12:10 AM | #5 |
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If they're painted, (you can scrape off the color) I wouldn't trust them, if they're molded with the colorant in the plastic melt, they should be fine in saltwater (or fresh). Most of the plastics that you have in your tank (powerheads, locline, etc.) have colorant added to them either in the molding process or as a masterbatch from the plastic resin supplier. None of these things leach anything into the water column. Once thermoplastic is set, it is inert and does not change under normal conditions, that's why so many people scream about plastics not being biodegradeable. If you drop a plastic widget in the ocean today, it will still be there 100 years from now, looking just like the same widget.
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This really isn't rocket science - it's more like marine biology. Current tank info: 180 gallon AGA, 40 gallon custom sump, AquaC EV240 skimmer, PM calc reactor, 3x 250w DIY MH, PCI CL-650 Chiller, 2x Koralia 4's, 2x Koralia 2's Last edited by steelhead77; 02/22/2011 at 12:17 AM. |
02/22/2011, 12:12 AM | #6 |
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Thanks for your input. I'll stick with real mangroves and rocks in the display and just shadowbox me some big mangrove roots behind the display.
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Karin Current Tank Info: 215g Caribbean Inspired Reef with Shadowbox |
02/22/2011, 12:23 AM | #7 |
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Real is always better. But you really don't need to worry about the plastic.
Post some pics after you have it set up. Mangrove tanks are pretty cool.
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This really isn't rocket science - it's more like marine biology. Current tank info: 180 gallon AGA, 40 gallon custom sump, AquaC EV240 skimmer, PM calc reactor, 3x 250w DIY MH, PCI CL-650 Chiller, 2x Koralia 4's, 2x Koralia 2's |
02/22/2011, 01:01 AM | #8 | |
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Quote:
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120g drilled, 30G sump, 20g Fuge, RO NWB200 Skimmer, Glass Holes Overflow, mag 12.0 return, Reeflo Dart closed loop, 6-bulb Sunlight Tek |
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03/02/2011, 08:15 PM | #9 | |
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Quote:
No polyresin...
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Karin Current Tank Info: 215g Caribbean Inspired Reef with Shadowbox |
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03/03/2011, 10:06 AM | #10 |
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That's awesome! I may do that with my 10g rimless that's sitting empty. I could build some islands and collect a couple of hermits from the beaches or something.
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"The moral is the chosen, not the forced; the understood, not the obeyed. The moral is the rational, and reason accepts no commandments." - John Galt Current Tank Info: Cadlights 60G Arisan II mixed reef with 2x MP40s and 24" ATI |
07/07/2020, 10:02 AM | #11 |
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will polymer be ok in a tank?
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07/07/2020, 10:36 AM | #12 |
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Problem with the plastic and ornament things is that by the time your tank livens up, you'll have a brown or green ornament with no features but algae. Everything will go brown or green.
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Sk8r Salinity 1.024-6; alkalinity 8.3-9.3 on KH scale; calcium 420; magnesium 1300, temp 78-80, nitrate .2. Ammonia 0. No filters: lps tank. Alk and cal won't rise if mg is low. Current Tank Info: 105g AquaVim wedge, yellow tang, sailfin blenny,royal gramma, ocellaris clown pair, yellow watchman, 100 microceriths, 25 tiny hermits, a 4" conch, 1" nassarius, recovering from 2 year hiatus with daily water change of 10%. |
07/07/2020, 12:57 PM | #13 |
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The one time I tried the stuff, about a year later it was all the color of the bare plastic, as the paint had dissolved into the water column. Never again.
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This hobby would be easier if my local stores had more fish. https://www.reefcentral.com/forums/showthread.php?t=2701233 Current Tank Info: Slowly stocking up 150 gallons, only a little livestock right now. |
07/07/2020, 05:25 PM | #14 |
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What sort of polymer are you considering?
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Jonathan Bertoni |
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