This is a discussion on Warm Water Now or Cold Water Later? within the Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; -->
Here are the results...
pH: light yellow (API test kit = 6 or less)
Same with hot or cold
After shaken and left sitting: ...
But you have to consider the other things in the conditioner. Like slime coat. ;)
Anyway, does anyone have any insight on my pH spikes? My tank contains...
6lb aquarium gravel from walmart that was cleaned by soaking in weak vinigar water and rinsed and soaked in clean water MULTIPLE times before introducing
Various glass jars
A plastic plant (no sharp edges!)
2 aquarium rocks (1 that's coral-esk and 1 that's painted rainbow from walmart. Both tested with vinager. No fizz)
1 Eggshell broken into pieces, but not crushed (pH thing was happening before that was put in)
Also, I have a pic of it in my album if you would like to see it.
Also, what would be a good/best sinking food for my bottom feeders? Posted via Mobile Device
To confirm: tap water pH is low 6's, say 6.3 (and you shook it to outgas the CO2), but tank water is 7.4 to 7.8 even. There would seem to be something calcareous in the tank.
The "coral" rock is the most likely suspect. Do you know exactly what substance this is made from? If it is true coral, it is calcareous and this will raise the pH (and the GH a bit).
I would check the gravel too. If you still have the bag, or can link to it online, does it mention anything about the gravel affecting hardness or pH? Those that do usually say this on the bag somewhere, though we can't be sure. Is the gravel white?
Eggshell will also raise pH. Why are you adding this?
There is no need to be washing new gravel in anything but tap water to rinse out the dust. Some of the vinegar (or any other substance used) can soak into the gravel and leech out in the aquarium. Now vinegar being an acid would not raise the pH, but this is just a cajution generally not to use substances aside from water.
using a product like 'slime coat' is totally unnecessary some of them are more irritants then anything. Any healthy fish will not have any problem maintaining its slime coat. When I do feel the need to use dechlor I use prime or basic sodium thiosulfate. I had tons of fish spawning just using my straight well water and not messing around with it. Angels, rams, tetras, gouramis, rainbows, to name a few and the TDS of that water was ~250ppm. I'm currently on city water which has some ammonia in tap and I'm pretty sure chloramines I let it sit at least 24 hours mainly because it has a pH drop instead of a pH increase and one larger then you are experiencing(8.5 out of tap and tanks sit at ~7.2). I still don't use any dechlor with 50% water changes and I've bred quite a few fish and currently have a bunch of happy fry doing just fine.
pH swings, bad or normal?
I only have a Marimo ball, but I hope the eventually get another plant. Maybe a Water Sprite.
Treat or no treat?
API or Tetra Plus? (those are what I have to choose from) Posted via Mobile Device
The pH fluctuations in the aquarium of 1 degree (and again, to ensure clarity, this means from 6.2 to 7.2 or more) are stressful on fish and must be avoided. A diurnal variaton of a few decimal points is fine, over the course of the day/night. The other question is how much does tha actual tank change with each water change? This is not likely to be so great, but it should be checked.
We already suggested you don't need a conditioner from what you've told us.
So, no conditioner. It worries me to not treat, but if yall say it's safe, then I'll give it a try after I go to PetSmart and get my tap tested for Nitrate.
My tests only go up to 7.8, so if they fluxuate when above that, I dont know. I do know it takes a MASSIVE pwc to lower it in range. I had a problem before with pH spikes thanks to a PetSmart employee selling me a large seashell as a hiding spot for my shrimp. I know I changed out the water, but I dont remember if I rinsed that gravel. It was 2lb and I added it in with the new gravel when I upgraded to the 10gal. Posted via Mobile Device