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Old 10-25-2012, 01:35 PM   #1
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That "New Plastic Smell / Odor" on Immersed Aquarium Accessories...

I'm re-posting my question in the General Hardware category out of curiosity & just in case...

"Did New Top Fin Heater Kill My Platys?" (Thread Title as posted in Freshwater - Unhealthy Fish yesterday)

2 weeks ago I acquired 6 blue platys & moss ball from a LFS, all of which were healthy, happy, horny and hungry. I placed them in a 5G QT tank w/ filter but no heater.

2 days ago, I placed a brand new, fresh-out-of-the-package, Top Fin 50 watt aquarium heater in the QT tank (so they could get used to a higher temp in the community tank), switched the temp to approx 82F (3F > current temp).

Next morning, all platys were huddled at the bottom of the tank, appearing to be "gasping" & not moving around like before. They also weren't interested in food. I turned the heater temp down by 1F, thinking the water may be too warm, too soon. 2 fish were sideways & died shortly thereafter. I immediately purchased & added an air pump to better oxygenate the water yesterday evening. By early this afternoon, the 4 remaining platys had perished, i.e. all 6 died w/in 24 hrs.

When I smell the rubber-like bumpers on the heater, they still have a nasty, strong "new plastic" odor emanating from them. It seems too much a coincidence that the fish died only over the last 2 days when the heater was placed. Before that, they had shown no signs of illness, i.e. irregular swimming, lack of appetite, etc.

(Feedback from "Freshwater - Unhealthy Fish" included: poss. skewed parameters, tank over capacity, etc., which I'll definitely take into consideration for next time!)

Your thoughts / experience on smelly plastics in tanks? I also have plastic aquarium plants that have a slightly less strong odor but it worries me whether the fish would be sensitive to them?
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10G (soon to be 25G) -- 1 Pleco, 2 ADFs, 5 platys, 8 harlequin rasboras, 2 neon tetras, planted.
125G -- 1 rescued RES, 3 zebra danios, 2 neon tetras, 1 long story.
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Old 10-25-2012, 01:46 PM   #2
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Seems like a lot of fish for a 5 gallon tank.. What was your ammonia testing at??
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Old 10-25-2012, 09:59 PM   #3
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Quote:
Originally Posted by Benamayer View Post
Seems like a lot of fish for a 5 gallon tank.. What was your ammonia testing at??
I didn't test parameters during the 2 weeks quarantine. Maybe I should do a post-mortem water test just for my own knowledge...?
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10G (soon to be 25G) -- 1 Pleco, 2 ADFs, 5 platys, 8 harlequin rasboras, 2 neon tetras, planted.
125G -- 1 rescued RES, 3 zebra danios, 2 neon tetras, 1 long story.
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Old 10-25-2012, 10:14 PM   #4
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I would.
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Old 10-25-2012, 11:11 PM   #5
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Quote:
Originally Posted by Benamayer View Post
I would.
Will do a test and post up the results.
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10G (soon to be 25G) -- 1 Pleco, 2 ADFs, 5 platys, 8 harlequin rasboras, 2 neon tetras, planted.
125G -- 1 rescued RES, 3 zebra danios, 2 neon tetras, 1 long story.
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Old 10-28-2012, 09:01 PM   #6
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Finally got around to testing parameters -- 4 days after the fish died. I left the filter running and the moss ball in there during that time. There were also some uneaten food particles I couldn't remove with the net.

Parameters as follows (5G tank):
pH = 6.6
ammonia = 6.0 ppm
nitrite = 0 ppm
nitrate = 20 ppm
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10G (soon to be 25G) -- 1 Pleco, 2 ADFs, 5 platys, 8 harlequin rasboras, 2 neon tetras, planted.
125G -- 1 rescued RES, 3 zebra danios, 2 neon tetras, 1 long story.
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Old 10-28-2012, 09:08 PM   #7
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Your ammonia killed them... If you are going to use a QT make sure it's cycled with appropriate filtration or do frequent water changes to keep ammonia down, probably once a day...
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