Hi, We have a 100 gallons aquarium with freshwater fish, in total there are like 30, but the pH level is always 6.0 or lower, we've been using the drops selled in PetCo and nothing, then we bought the correct pH 7.0 fizz tabs from tetra fin and it dosen't work...what else can we do?.....we are new in this fascinating fish world.....HELP!!!!!
Those pH changers have only a temporary effect and may cause large, sudden changes in pH values. Quick changes in pH and most other water parameters stress the fish and end up making them sick.
Most municipal water systems have a high pH. Extremely low pH can be caused by improperly used carbon dioxide supplementation or other reactive compounds. This can happen if the aquarium does not have a working nitrogen cycle or does not receive regular, partial water changes. Over feeding and over crowding compound the problem.
If you need more details, please feel free to ask.
my 160 gallon fresh water tank keeps changing ph. the only way to bring it back up is to add crushed coral. What caused it to drop so low. My tap water is like 8.0 and unless I keep coral in the water it keeps dropping.
One source of pH swings is distilled or reverse osmosis water. Neither has pH buffering minerals, so pH swings will happen if they're used for every partial water change.
Carbon dioxide supplementation can also affect pH, as can reactive compounds like ammonia and nitrite. If a carbon dioxide system is operating after lights out, the plants are also producing CO2, which can in turn can be a component of acid.
The most common source of excessive acid is uneaten food making ammonia, which is a reactive compound of nitrogen and hydrogen. Over crowding will do the same thing. One fix is making sure the fish eat all of the offered food in a couple of minutes. Regular, partial water changes are also effective. A good starting point is 25 percent each week. Since your aquarium already has a pH problem, you may want to do partial water changes several times a week until things stabilize. Always use a good water conditioner and try to get the temperature of the replacement water close to that of the aquarium water.
HI I HAVE A 5 GALLON FRESH WATER TSNK AND MY PH IS AT 6.0 IT WAS AT 7.4 Y DID IT DROP I DO MY WATER CHANGES EVERY WEEK I HAVE 4 ROCKS ANF JAVA MOSS AND JAVA FERN
i found baking soda raises ph well jus dont raise it to fast cause it will stress ur fish
i found baking soda raises ph well jus dont raise it to fast cause it will stress ur fish
also alka seltser will lower ph
If pH consistently decreases, something in the aquarium must be releasing acid, or it may even be in the tap water. It's easy to check the pH of your water supply and see if any decoration or substrate material is not intended specifically for aquarium use. If the aquarium does not have a tight fitting hood, the acid may be created by residue from a glass cleaning liquid.
As mentioned previously, the most common source of a low pH is decaying organic matter such as dead fish or snails, decaying plants, uneaten food or accumulations of other organic matter. If the nitrogen cycle is not fully established, pH may be fluctuating. Swings in pH are also common when some of the pH adjusting chemicals are used. Their effect is usually temporary.
Since pH swings are dangerous to fish, it's important to find and remove the source. One effective way to gradually increase pH is adding some crushed coral.
In any case, it's a good idea to feed no more than the fish eat in a couple of minutes and change about 25 percent of the water every week.
dissolve 1 teaspoon of Bicarb Soda in some water add to tank do each day till you reach your PH this is a lot cheaper than buying stuff from shop and it works the same I have been using this for years in my cichlid tank you can put up to 2 teaspoons but I suggest you only do 1 until you work out how much your PH goes up hope this is of help to you.
I have a question, I have been raise around fish tanks and had a bad time this week with my 30 gallon tank kwhile doing my water change. Prior to doing my change noticed my ph had dropped from a 7.5 to a 6.5 in a matter of a few days...came home to most of the fish looking like they were overheated or gasping for air at the top of the tank...thought this might be due to the 1 degree temp change I did in the tank anlong with me needing to do the water change...so I reduced the temp in the tank to 74-76 then they perked back up...proceeded to work on my 125 gallon tank...no problems there...came back to the 30 gallon tank where I found 3 dead fish and several of the fish looked as if they were peeling...not ick mind you peeling...their eyes were clouding over...this happened so fast I did not even have time to react...so I went forward with the water change...thought I should do 1/2 the tank this time due to the low ph...started to refill the tank...second bucket in and mind you I was getting the water from the bath tub faucet, its faster, brown water came out into my bucket. I thought oh ****...mind you the first 2 buckets were by no means brown, but I do not know if there was anything in the water because it was clear...ran the water for another 30-45 minutes until it ran clear agan finished filling the tank as normal...added the normal chemicals. I did add a antifungial med since most of the fish by now were clouded over...and hoped for the best. Woke up at 4:30 all but a few were dead...were talking 15-20 fish...since I have empted the tank of fish and decor...left gravel...did water change of 50% again yesterday...to try again to get the ph up...now th ph is at 5.0...added ph up...cannont get it up...what do you think is going on??? I really need to do a part. water change on my 125 galloon but really am not sure if I should if my water is having issues at the house. Oh and yes it is city water. never had a problem with it...30gallon tank have been up and running no problems, deaths, or anything for over 8 months until this. Please help.
You may want to first check the pH of your tap water to eliminate that as a possible source of low pH. To further verify your test results, take an aquarium water sample to a pet shop and get a free water test. Also check the expiration date of the tap water conditioner.
It's a good idea to check for toxic nitrogen compounds. If the fungus meds killed the beneficial bacteria associated with the nitrogen cycle, or if the aquarium has old tank syndrome, it will have pH swings. This is normal while a nitrogen cycle is growing or getting reestablished.
The pH up and down stuff has only a temporary effect, so the net result is pH fluctuations. If you are sure the low pH is a result of the tap water acidity and not an aquarium decoration or other acid source, pH can be gradually increased by adding crushed coral.
I hope some of these ideas help solve the problem. Please keep us all posted.
I have 2 100 gallon freshwater tanks. They have the same FW plants and fish. They all went thru quarantine together and have been in the tanks for over a year. There are discus, neon tetras, danios, glowlight tetras, and plecos. They get the same 10% WC weekly and the tanks get the same plant supplements: Excel, Iron, Algae Fix, etc. For some reason the pH in one tank is much lower than the other one. One tank's pH 4.5 and the other is 5.7. The rest of the chems are normal.
The tank with the lower pH is having mortalities. Any idea why this would the one tank's pH is lower than the other? Any ideas on how to fix this problem? How do you recommend I raise the pH?
The pH of the water I use for the water changes is 6.9.
That is strange. I have gotten mine under control
I only check mine once a month. This seems to work. I think the crash in my 30 gallon tank was due to my city water but it has been fine since then. I use API stress zyme + when I do my water change. I normally pull out 4 five gallonbuckets of water out with the syphon from the gravel bottom when cleaning the tank. The water gets the fish biproducts out so it is normally black. Then I use 1 teaspoon of the stress zyme with every 5 gallon bucket I pour back into the tank. This process has kept my tanks very healthy and the phone levels in tact. I am not an expert but I don't know if you need to change it every week. Once a month works great for my tanks. I have a 125 gallon, 30 gallon, 10 gallon, and 3 gallon tank. I do all of them at the same time.
My ph had a huge spike the other day!
I have been dealing with plummeting pH for a few weeks now. I thought I had the problem under control when I added pH buffer from the pet store. It set the pH to 7.0 and held it. Now that I have done my weekly water change (33%) the pH has again plummeted to 4.5. It would appear that the water is not properly buffered. Why is this? What would lower the buffering potential of water? I can just add more buffer but it makes the water cloudy and sticks to the glass, plus it's expensive. I can't just add these things every week when I do my water changes. There must be a solution. Has anyone else been here?
Patrick is the water from the tap that low?
No. As a matter of fact I use tap water to loosly calibrate my meter. It's always right around 7.0.
It really seems like a buffering problem because the pH hangs right at 7.0 till I do the water change, then it drops soon after. Like I am diluting the buffer.
Have you tried gassing out a bucket of tap water to see where it ends at? I only ask because we have seen some REALLY strange tanks lately. You can check this by placing an airstone in a bin of conditioned water for 24 hours. This will give us the true ph of the water.
If it turns out to still be close to 7 after 24 hours then there may be something in the tank causing the problem.
Edit: I was not paying attention. You should post this as a new post so others might jump in. This is a very old post.
I've never heard of the term "gassing out the water". What is being "gassed out"?
Depending on the buffers in your water, the ph can lower after a day in the tank. We check it in this way so we can determine if its a buffer issue, or if there is something in the tank causing the drop.
We had a tank a couple of weeks ago where it was actually the gravel causing the ph drop.
If you have the kit to test your waters gh, and kh that would be helpful as well.
I'm working on recycling my 55g after meds killed my beneficial bacteria (killed the ick, too, along with temperature raise). Ph was at 7.0 out of the tap. When I read about gassing off, I tested the water in our cat's water bowl and it was at 6.0 Now using left over ph 8.3 buffer from when I had a reef tank until I get the crushed coral I ordered onine. The ph buffer keeps it around 7.4, but it slowly drops as I do my almost daily 1/2 to 1/3 water changes. Been doing this for 2 weeks, and have used almost 2/3 of my 8.5oz. Prime bottle (God bless Seachem, because they invented Prime and you can use up to 5 times the recommended dosage and it doesn't hurt the fish). I tend to err on the side of caution. Haven't lost a fish yet in my heavily stocked tank. Just trying to be patient. Added lots of new plants. Ammonia still at .5 ppm, no nitrite spike, but lots of nitrates. Nitrites test at 0 every time. They must be in there, but are probably overwhelmed.
P.S. short answer - Test your tap water after letting it gas out over night.
the driftwood in my tank is turning the water brown and i dont know if it will kill the java fern.. can you help me? i just bought them and they are turning black now..
Driftwood releases tannins which gradually lower pH and soften the water. The amber stain is temporary, and it simulates conditions in the Amazon basin where many aquarium fish originate.
Like any plant, Java fern suffers transplant shock. Sometimes, the black spots on its leaves grow little plantlets, and that's one of the plant's propagation methods. Leave most of the root materials exposed. Given the opportunity, Java fern will sink roots into porous surfaces like driftwood.
I have been searching for some time now and it has become difficult to find an answer with my tank size 5 1/2 gallon. I went 2 years and no issues. however now I can't get my PH up. I have 3 neons, 1 guppy, 2 snails (and a large piece of wood). However 3 fish have died (4 in the last few months). I check the PH and it is below the scale. The tap water PH is normal. I do 10% water changes weekly. I know small tanks can be risky - I'm open to suggestions. Thanks!
Mark: My best guess is the aquarium is overcrowded. It may also have something called old tank syndrome. When this happens, everything is fine for quite a while, then one day ammonia suddenly increases and pH gets out of control.
An aquarium with a fairly heavy biological load for its size operates close to its limits. When that happens, a bit too much food or a missed partial water change can produce a sudden and deadly increase in ammonia.
Here is a safe way to check and correct the problem:
You can find more about old tank syndrome under the Top Blogs list at the upper left of the page.
are you disturbing the substrate every week.
one of the causes of old tank syndrome is that if gravel becomes compact and is not agitated it can become anaerobic releasing ammonia (when agitated after a time) which can lead to water chemistry wonkiness
its also an open topped tank. have you started using a new air freshener.
what's the temperature, has it raised?
have you been topping up with tap/bottled water to combat the dehydration caused by the summer heat?
have you changed the amount of food now there's less fish?
is that new gravel? coral maybe?
First off thank you for the input.
I would say yes, I have disrupted the substrate and yes, it was a mess. When left alone there is nothing. However during weekly cleanings I would move plants etc. I'm not sure how to avoid this going forward but I will read more as I'm sure this will happen again.
Since, all but 2 fish died (but the snails seem to live through anything). I pulled both fish out and into a separate small tank, yes it was a massive PH switch for them but there wasn't much choice. Then I bought new substrate and used half old half new. Removed the wood and redid most everything. I think part of the issue may have been I was reusing the filter foam more than once (rinse, replace). Also the wood always seemed to turn the water brown very quickly (though it is not new).
The 2 fish are back in, PH is up in the 7 range and they are moving around rather than sitting near the bottom of the tank. I know the movement is a shock for them but there wasn't much choice.
There is a glass top that is on the tank (which is not in the pic).
With the small tank I need to figure out how not to have this happen again. First off I will not have more than 3 fish, secondly never reusing filter foam. I do need advice on how to treat the substrate correctly during weekly maintenance.
Of course now I just read not to change the filter elements to quickly in the post... soo maybe it was the substrate disturbance. I have very sandy/sand substrate, so it is easily disrupted.