what is 'ph???'?

Answer 1

.ph is the Internet country code top-level domain (ccTLD) for Philippines.

PH or ph or pH or Ph may be:

pH, a measure of acidity (chemistry)
Ph, a phenyl ring (organic chemistry)
PH, the ISO country code of the Philippines (see .ph, the Internet country code top-level domain (ccTLD) for that country)
ph or phot, a measurement of illuminance (photometry)
PH, pulmonary hypertension, a medical condition
Ph is an old name service protocol also known as CCSO Nameserver and described by RFC 2378
PH, the union of all complexity classes in the polynomial hierarchy (computational complexity theory)
the Greek letter φ (Greek alphabet)
Ph (digraph), a digraph (two graphemes, p and h) that represents the phoneme /f/ (phonetics)
The Legend of Zelda: Phantom Hourglass, a video game
Polynesian Airlines IATA airline designator

Answer 2

That's the alkalinity or acidity of your tank water. Fishes can only tolerate only certain PH level of your water. Yuo consult with your local pet dealers. I'm sure you can good info through them or just do a google search on that.

Answer 3

PH is an indicator of acidity. It ranges from 1-14. 7 is neutral (water), lower than 7 is acidic and higher than 7 is alcaline. Urine (if you are referring to pets for crystal formation) should be around 6. If higher than 7, struvite crystals may form and block the urethra. If lower than 5,5-6, the opposite kind of crystals can form.

Answer 4

pH
pH is the measurement of hydrogen ions. Increased hydrogen ions (less bonding) result in a drop of the pH (more acidic water), while a decrease results in a pH rise.

pH = power of hydrogen.

pH is measured on a scale from 0-14. The neutral value is 7, while values below are more acidic (towards a car battery) and values above 7 more basic (towards dish soap).

Changes in pH are a common cause of fish fatalities. Fish can adapt to most pH levels, if not broadly out of range, but they can’t adapt to bouncing values.


This is because pH has a logarithmic function (mathematical - meaning ten-fold). In other words, a change in pH from 7 to 6 means 10 times more acidic water. A further drop to a pH of 5 equals 100 times more acidic water.

If you have to adjust the pH in your tank, always consider the carbonate hardness. The pH in harder water more difficult to adjust because it bounces back, while softer water is more easily adjusted. Keep in mind to change it slowly as it causes a lot of stress to your fish. Maintaining a stable pH is generally more the way to go.

Some other facts about pH:

>>>Ammonia increases in toxicity with rising pH
>>>Nitrifying bacteria experience a growth and action reduction starting at a pH value of 6 and lower

Nitrogen Compounds
Ammonia, Nitrite, Nitrate are well described on our site.

Phosphate
Phosphates enter the aquarium mostly through water changes using tap water, but also through food and leaching carbon. Next to chlorine some communities also add phosphates to the tap water. Dying plants and algae will create phosphates while decaying (mineralization).

Very interesting to know, is that the high pH level required for salt water will hold phosphates in an insoluble stage. A drop in pH, and this happens in a matter of days, will make those compounds water soluble and therefore available to the algae spores.

Please note, that the pH levels slightly vary within the tank, and a drop in one spot can have an effect.

Silicate
The most common points of entry are the substrate, salt, water and dying diatom algae. Please keep in mind, that R/O and D.I units (filters to purify tap water by membranes or by chemical/ mechanical processes creating distilled water) will prevent silicates only for a few days, before they find the way through the membranes.

Another form of silicates is silicid acid, created by decaying organic matter. Same as phosphates, they can be water insoluble at a high pH, and become readily available with decreasing pH levels.

Chlorine/ Chloramine
Water companies add chlorine or chloramine as a disinfectant to tap water. Chlorine is less stable then chloramine and airs out in just a few days. Some hobbyists simply let the water age for a couple of days before doing the water change, thus airing out the chlorine.

Chloramine is much more stable. That is why communities switch from chlorine. As it is very stable, it does not air out even if heavily aerated.

Chloramine, a mixture of ammonia and chlorine, passes (unlike chlorine) through the fish’s tissue directly into the bloodstream. In the blood, just like nitrite, it destroys the oxygen carrying cells. Chloramine can cause all fish to die within 24 hours

Answer 5

pH (pondus hydrogenii ) is a measure of the acidity of a solution in terms of activity of hydrogen ions (H+). Dissolved chemicals and minerals change the balance of those ions from a perfectly neutral state. Increase the amount of hydrogen ions (H+), and the water becomes more acid ("low pH"). Increase the amount of hydroxide ions (OH-), and the water becomes more alkaline ("high pH"). The further these values rise or fall, the more acid or alkaline the water becomes. Pure water has a pH value of 7.0.

In the aquarium hobby pH is very important especially in salt water tank and reef tanks. Most freash water tropical fishes sold in petshop trive in a 7.0 pH level. pH level lower that 7.0 are considered acidic. In biotope set-up those waters found in the Rio ***** are considered very acidic. . Freshwater fish thrive at the neutral to acid end of the spectrum between 5.5 and 7.5. pH is not static, it changes over time - in fact it even changes over the course of a day. Most African cichilds do well in a pH range of 7.4 to 8.2. Angel fish breed between 6.8 and 7.5 where 7.0 is the optimum.


Saltwater fishes and corals trive on water with a pH level of 8.0 because of the lime contents of most corals and sand.

Sudden change of pH is very harmful on fishes. It causes shock. In saltwater tanks for example, sudden rise of pH means ammmonia build-up.

In fresh water tanks, there are fishes who are quite sensitive with pH fluctuations, like neon tetras for example. No freashwater fish should be kept below a pH of 5.5

As I have said, pollutants in the aquarium tends to decrease the pH level. Uneaten food, decaying plants and dead fish increases CO2. Lower pH in aquarium are also cause by overcrowding of the tank. The increase of carbon dioxide in water lowers the pH.

Decoration such as sands, drift woods and stones inside the aquarium may effect the ph level of your water. If the pH level of your aquarium increases, ammonia becomes 10 times more toxic. Marine aquarists uses "buffers" like calcium bicarbonate to convert it to calcium carbonate.

Answer 6

ph..mean physics any way!

Answer 7

It is the level of acid present in water/soil.

Answer 8

what are you talking about use the optinal function more detail next time.

Answer 9

your phone #...