RE: [Killietalk]Hot Refugium?

[Chris <cgraseck at optonline_net>]

Karen,

I thought I was up on all the latest reef terminology but I've never
heard of a "hot" refugium.  What is different about it compared to a
regular old refugium?

For those who are wondering what the heck a refugium is, they can take
many forms but usually are some sort of aquarium which  is plumbed
inline with a reef tank.  This separate aquarium has no fish and is a
place specifically designed for "pods" ( isopods, amphipods,
copepods......).  The idea is that the pods can reproduce unchecked in
this aquarium and then overflow into the display tank where they will be
consumed by the predatory residents.  Many refugiums are lit at night to
keep the photosynthesis going.  This helps to keep the pH from dropping
when the lights go out (due to the formation of carbonic acid from the
build up of CO2).  Most are designed so that they are higher than the
main tank.  Water is pumped from the sump into the refugium and
overflows into the main tank.  In this way the "pods" don't have to
travel through the impeller before they reach the display tank. Mine
overflows into the sump so my "pods" do have to travel through the pump
before they make it to the tank.  Something as simple as canister filter
without media can act as a refugium as well.

Karen may want to add to my description.

Cheers,
Chris

-----Original Message-----
From: killietalk-bounces+cgraseck=optonline_net at aka.org
[mailto:killietalk-bounces+cgraseck=optonline_net at aka.org] On Behalf Of
Karen Perdue
Sent: Wednesday, March 03, 2004 12:13 PM
To: killifish discussion list
Subject: Re: [Killietalk] Acrylic bonding

Hi Lee,
can you share where I might find this weld? I have looked all over for
it
here, and eitehr I'm asking for the wrong product, or I'll have to go to
the
"big city" to find it. Any product names would be helpful, and GREATLY
appreciated!

I'd like to build a HOT refugium for a SW tank, but the silicon sealant
just
doesn't cut the mustard<G>

TIA!

Karen
----- Original Message -----
From: <LeeH920226 at aol_com>
To: <killietalk at aka_org>
Sent: Wednesday, March 03, 2004 10:58 AM
Subject: Re: [Killietalk] Acrylic bonding


>
> In a message dated 3/3/04 10:43:10 AM, tucker at covad_net writes:
>
> <<  What is an aquarium safe way to bond acrylic to acrylic? >>
>
> Acrylic cements are solutions of an acrylic polymer in strong
solvents.
The
> resulting bond is more of a weld than a glue line because the strong
solvents
> actually dissolve the surface of the sheet goods. The safety involves
two
> parameters. First is the bond strong enough and watertight? That is a
matter of
> technique, learned by experience. Second, is the matter of toxicity.
The
solvents
> are toxic to you and to the fish at some concentration. But, given
sufficient
> time, they will evaporate and no residue will be left. To be safe,
after
> several days in a ventilated space, it should be OK, but a water rinse
would not
> hurt and you want to check for leaks anyway.
>
> Lee Harper
> Media, PA
>
> To join the AKA see http://www.aka.org/pages/join.html
> Archives are at http://fins.actwin.com/killietalk/


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