Salt who still believes ???

[T1KARMANN]

must be the big internal filters that pump out all that air

or the 9500 litres per hour i turn over on a 1400 litre system

as i said what works for some may not work for other but so far i have not had any problems so i wont change a thing

 

[DavidW]

1400 litres = 369.840 gallons.
= 1 tank

 

[ewurm]

I'd rather see more people move towards prevention of issues by proper care rather than look to salt treatments as a fall back.
Yes, I'm well aware 'things' come up even in ideal tanks.

Have I used salt in the past? Yes.
Is it the first tool I reach for? No.
Do I think it's a 'cure all'? Not by any means.
Do I think it's long term use has a negative impact on FW rays? Yes.

Wish I would have seen this before. That's pretty much my position. According to the scientific documents I have seen, excess salt in the water long term may over work the renal system.

 

[Tom]

Prevention is what I believe

 

[Gr8KarmaSF]

there will be a pretty siginificant difference... the warmer water will hold less you know this silly

this is why airstones are soo important and surface aggitation etc....

I know this BUT I want numbers....SILLY!

 

[DavidW]

I know this BUT I want numbers....SILLY!

here ya go

numbers numbers numbers....

http://antoine.frostburg.edu/chem/senese/101/solutions/faq/predicting-DO.shtml

(sample with numbers for GR8 )

How can I predict oxygen solubility in water?


The solubility of oxygen is affected by temperature and by the partial pressure of oxygen over the water.
How does temperature affect dissolved oxygen levels? The solubility of oxygen is greater in colder water than in warm water. Oxygen slips into "pockets" that exist in the loose hydrogen-bonded network of water molecules without forcing them apart. The oxygen is then caged by water molecules, which weakly pin it in place. The dissolution is exothermic overall, so cooling shifts the equilibrium towards the dissolved form [1].

How does oxygen partial pressure affect dissolved oxygen levels? Oxygen in water obeys Henry's law rather well; the solubility is roughly proportional to the partial pressure of oxygen in the air:

pO2 = KO2 xO2

where pO2 is the partial pressure of oxygen in Torr, xO2 is the mole fraction of oxygen in oxygen-saturated water, and KO2 is the Henry's law constant for oxygen in water (about 3.30 × 107 K/Torr for at 298 K [2]). Higher air pressure means higher partial pressure of oxygen, so waters at sea level can contain dissolve slightly more oxygen than mountain streams at the same temperature. High humidity very slightly lowers the fraction of oxygen in the air, and so lowers saturated dissolved oxygen levels slightly.
Many empirical equations are available to accurately estimate oxygen solubility as a function of temperature, pressure, and humidity. The more accuracy you require, the more complex the equations are.

Here are some very simple empirical equations that give the saturated dissolved O2 concentration (DO) in mg O2/L water. They apply to oxygen in distilled water at a barometric pressure of P (in torr), at a temperature of t (°C), with a water vapor pressure of p (in torr) [3]:
0°C < t < 30°C
DO = (P-p) × 0.678
35 + t
30°C < t < 50°C
DO = (P-p) × 0.827
49 + t

 

[T1KARMANN]

1400 litres = 369.840 gallons.
= 1 tank

yep

 

[Gr8KarmaSF]

(sample with numbers for GR8 )

DUCK!!! - INCOMING!!!

 

[fishmamma]

One of my tanks recently was infected with ick, keep in mind that I had never experienced this before...so what do I do?? I call on the MFKer's and you know that I was told to treat with salt..and as of today I can only see on little guy with a few spots and this was exactly one week ago today....so YES, I NOW BELIEVE SALT WORKS......

 

[T1KARMANN]

rays don't get ick so its only other fish in the tank you need to treat

with ick most tell you to add salt and up the temp

what i have found is if you have a real powerful UVS then most of any parasites get killed in the free swimming stage