Re: [AGA Member] DIY yeast bottle cap glue toxicity?

["Joseph A. Zdzinnicki" <dragonlordno1@yahoo.com>]

I use a 2 part epoxy glue for yeast bottles. The glue
will hold better if you lightly sand the plastic
bottle cap and the hard plastic air line. I use a fine
grit sand paper. --- Heather J Gladney
<hgladney@comcast.net> wrote:
> How important is trace toxicity from glue securing
> airline barbs in the 
> caps of DIY yeast bottles?
> I had several combined factors that may have killed
> 4 of my bigger fish, 
> such as pH and heater/room temp overheating, but
> also using a different 
> glue on the bottle caps for the new yeast batch.
> I'd been using silicon before.  The odd thing is,
> puttin the new caps on 
> a different tank, fish are fine.
> I let the Outdoor Goop for 5 days, but it still had
> a very faint 
> plasticky odor.  In a previous experiment with it on
> the same tank, I'd 
> let it outgas for more than 2 weeks, to no obvious
> ill effects.  My 
> sister commented that Outdoor Goop is really toxic,
> she thought there 
> were warnings to parents about not letting children
> get hold of it at 
> any time.  It isn't the same as the regular indoor
> Goop.
> Goop was recommended on one of the other aquarium
> CO2 lists, but without 
> specifying which type of Goop.  It does hold the
> stem and cap together 
> really well.  Normally I'd prefer the silicon, but
> over several months I 
> found silicon is not adhering to the plastic of the
> bottle caps well 
> enough to hold up when I'm banging bottles about
> underneath the tank (as 
> carefully as possible, but still!).
> Should I try gluing the next batch of bottle caps
> wiht it and let it air 
> longer, or give up and go back to silicon?  Silicon
> isn't nearly as 
> secure or solidly attached to the plastic.
>  I was also wondering if I could get away with
> gluing the silicon first, 
> then layering Outdoor Goop over it only on the
> outside, or if I should 
> go buy the regular Goop (not outdoor), or if I
> should do the silicon 
> then layering with the regular Goop.
> 
> Thanks!
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