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Old 20-12-2008, 12:15 AM   #51
jedi
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Originally Posted by satan_gal View Post
I found this on an online store.

http://www.reefdepot.com.sg/AddProduct.asp?ProdID=166

Normal already 189. No need promo price

Shipping price above $300 got free speedpost delivery. DBS/POSB card holders can get 0% installments.

U think can use tat to push the price lower?

maybe u can contact reef depot to see if we can get a better price if we mass purchase. drats! to think i just got my 1st orp meter there for $205
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Old 20-12-2008, 12:16 AM   #52
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Originally Posted by Schmike View Post
what brand?

i was thinking of getting either one of these:
pH + ORP + temp (ORP probe need to get seperately):
http://www.transinstruments.com/Products/Uni%20pH.htm

ORP only:
http://www.transinstruments.com/Products/Senz/redox.htm


pardon me, these probes are a 1 time off reading or continuous reading?
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Old 20-12-2008, 12:23 AM   #53
satan_gal
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That's why I normally do the purchasing.

Sometimes.. when too familiar with the shop, we tend to forget they might take our pockets for granted.

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Originally Posted by jedi View Post
maybe u can contact reef depot to see if we can get a better price if we mass purchase. drats! to think i just got my 1st orp meter there for $205
Meanwhile.. mayb can carry on sourcing?
I saw in another forum bro atom seem to have something very very useful.

http://aquamarin.com.sg/Product.asp?...nd=Aquatronica
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Old 20-12-2008, 12:29 AM   #54
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Originally Posted by jedi View Post
pardon me, these probes are a 1 time off reading or continuous reading?
these r just like pH pens. transmedic's pH pen is quite gd. im using it. so if that american marine is gd i will consider getting their ORP n pH meters. transmedic only have pH cum temp meter. no ORP meter.
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Old 20-12-2008, 11:29 AM   #55
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I personally have reservations on ORP pens as opposed to meters. ORP readings take a few hours to stabilize so i m not sure how a single reading by a pen works or is it accurate enough.
My personally preference is to monitor pH and ORP continously. Just like what Daniel says, u are keeping the water stable and these are devices to detect when something is going to go wrong( when pH or ORP is starting to show a downward trend): a PREVENTIVE measure

When u find yr rays not behaving well and then test with the pen and realize orp and ph readings are crappy, things have already gone wrong !
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Old 20-12-2008, 11:53 AM   #56
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Originally Posted by conchabullosa View Post
I personally have reservations on ORP pens as opposed to meters. ORP readings take a few hours to stabilize so i m not sure how a single reading by a pen works or is it accurate enough.
My personally preference is to monitor pH and ORP continously. Just like what Daniel says, u are keeping the water stable and these are devices to detect when something is going to go wrong( when pH or ORP is starting to show a downward trend): a PREVENTIVE measure

When u find yr rays not behaving well and then test with the pen and realize orp and ph readings are crappy, things have already gone wrong !
which brand u using?
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Old 20-12-2008, 12:00 PM   #57
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Quote:
Originally Posted by Schmike View Post
which brand u using?
Pinpoint , American Marine for both ph and ORP.
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Old 20-12-2008, 12:10 PM   #58
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Originally Posted by conchabullosa View Post
Pinpoint , American Marine for both ph and ORP.
is it gd n reliable?

if its gd maybe later i go check it out at reef depot. sin ming is quite near for me.

Last edited by Schmike; 20-12-2008 at 12:16 PM.
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Old 20-12-2008, 12:21 PM   #59
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I'm using American Marine ph meter. So far no complaints.. using for 2years.
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Old 20-12-2008, 12:25 PM   #60
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OK but the probes are fragile and easily crushed by the adult rays. u have to put it out of reach of the fish .
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