cichlid2006;4892352; said:
I may be having a blonde moment here as it is very early for me but surely if you have say 20ppm of chlorine in your tap water then surely it takes X amount of prime to take away that 20ppm of chlorine regardless of where the water is situated.
"chlorine will dissipate out of the water when exposed to air. the greater exposure to air dechlorinates along side the prime, therefore less prime is needed to dechlorinate the same volume of water in the same amount of time."
cichlid2006;4892352; said:
Also if surface area was an issue surely aquarium dosage would be totally dependant on the surface area of that aquarium, be it a 12x8x8" or a 72x24x24" which are both rather standard aquarium sizes or very closes to it.
Those ratios are akin to comparing a 6x2x2' tank to a 36x6x6' pond, yet you would always use aquarium prime on either of the tank sizes but only pond prime on the massive pond despite the same size ratios between the two tanks mentioned above and between the large tank and the large pond.
ponds are almost never more than 3 feet deep because that is the deepest frost line for most of the usa and it gets hard to see the fish past that depth (you'll find those figures in most of the pond/water garden construction literature). there are few reasons to have a pond deeper than that, so few that i can't think of even one example of an actual pond deeper than roughly 3 feet... except for what nes999 claims, but i'm not even sure what he was trying to say.
i think the ratio they refer to is surface area to depth. so a 6x2x2 tank would have 6sq.ft. of surface area for every 1 foot of depth and the 36x6x6 pond has 36sq.ft of surface area per 1 foot of depth. that's 6x more surface area to depth for the pond.
DISCLAIMER: i could be totally wrong about this whole idea. you could also look at it as your pond has 6 cubic feet of water for every square foot of surface area and the tank only has 2 cubic feet of water per square foot of surface area (giving the
tank a better ratio).
i have no clue which ratio would be more practical to use. possibly, seachem has done some tests to determine the necessary dosage of their product that you could ask them about?
they could also be figuring in that it takes more time to fill a pond than an aquarium because of the ponds larger size. giving the pond more time to "gas off".
cichlid2006;4892352; said:
With that reasoning doesn't the tech's answer start to look like marketing squirming because people are starting to catch on to pond prime and its much cheaper price in comparison to aquarium prime.
pond prime is only slightly cheaper and yes, it does seem to look like some kind of a marketing maneuver to me.
assuming that pond prime is the same as aquarium prime, the questions that remain are:
1- why does a pond of equal volume need less prime than an aquarium?
2- how did they determine that a pond needs less prime? in other words; what tests have they done and what were the results?
cichlid2006;4892352; said:
Edit: I have sent an email to seachem with tank size included so they can best answer my question "I use Aquarium prime at the moment but I have a large tank and while Prime is a great product that is very cheap per dose I have noticed that Pond Prime would work out cheaper for me.
For your information to answer my question better my tank is a 60x24x24" with a 30x18x18" sump with lots of open air water movement which is a large of volume of water but still within standard aquarium sizes.
Would I be able to use Pond Prime on my large aquarium?"
I will post a reply when I get one.
I understand a 5x2x2 is not particularly large here but to the regular world a 5x2x2 is a swimming pool of an aquarium.
i'm looking forward to seeing their response.