pH unstable?

  • We are currently upgrading MFK. thanks! -neo

BMac91

Plecostomus
MFK Member
Mar 14, 2011
433
107
61
Alabama
Some questions about some odd pH readings I have got.

I have had very successful fish tanks in the past, however, I moved a few years ago to the current house and had broken everything down. Well, I started again a few months ago and everything seemed fine at first, but over the last 2 months I have had some random issues that I could never figure out what caused. I lost 8 Geos, I can only assume to ich, since that was the only thing brought in at the time. Which is something I have never lost fish to before, but things are possible, right?

A few weeks ago, I started having trouble with a Motoro pup I had gotten, he developed white spots on his disc before his unfortunate passing. After some research it seems these spots or "disc burn" were potentially from pH shock. I truthfully never tested the pH coming out of the tap consistently until recently, and that is on me. I was naive to assume it would stay consistent.

Here is the deal, the pH out of my tap is never consistent. I have been testing it the last few days and straight out of the tap, I have seen anywhere from 7.4pH all the way up to 8.4pH. I have a tub of media I am fishless cycling due to all of the ich issues, yeah pH in that tub, which has been sitting at room temp with an air stone for about 5 weeks now, is 6.6/6.8. My 36 gallon tank has a couple of tetras in it, it was sitting at a pH of 6.0.

This stuff is all over the place and I can't for the life of me figure out why. Does anyone have similar issues that they handle in unique ways? My larger tank is 220 gallons, so I know the goal would probably be to have water change water already out and aerated, but I don't have any feasible means of doing so. The next best thing I can come up with is somehow setting myself up a drip system for an attempt at consistency?
 
things are possible, right?
Yes. Especially the bad things.

I wouldn't set up a drip system if your city can't get the pH consistent. You could contact them about it, but until then, just check the pH before a water change and use chemicals to adjust it.
 
  • Like
Reactions: BMac91 and o5b0rn3b
A drip system would give you of a time cushion with the pH fluxes. That's not exactly a solution though. But yes that's better than a 50% change of 8.4pH into 6.8 tank. But either way it's gonna fluctuate just as much. Better to test and adjust accordingly as stated above.
 
  • Like
Reactions: BMac91
Test your KH. Try to keep it between 80 and 200 PPM.
I got a test kit for this this recently, going to give it a shot now and see what I come up with. What would the affects be of a KH reading either lower or higher than those you posted? Each side of the spectrum either drop or raise the pH?
 
I got a test kit for this this recently, going to give it a shot now and see what I come up with. What would the affects be of a KH reading either lower or higher than those you posted? Each side of the spectrum either drop or raise the pH?
It keeps the pH from changing.
 
Baking soda is used a lot in koi ponds and it works great. It is also very cheap. Just make sure it is unscented and has no additional chemicals.
I've used that too. I just prefer the seachem.
 
  • Like
Reactions: CarpCharacin
MonsterFishKeepers.com