Jump to content
Sign in to follow this  
Sprae

Fluctuating pH in planted tank

Recommended Posts

Sprae

Hi guys, I've noticed that my tank pH is 5.8 during the day but goes higher to 6.0. Is that normal?

As many of you know, I have loads of moss and an anubias on a driftwood.

Share this post


Link to post
Share on other sites
fishmosy

Completely normal. Its all to do with CO2 (carbon dioxide). CO2 reduces pH because it forms a weak acid when dissolved in water. During the day, your plants use up CO2 for photosynthesis, thereby increasing the pH by removing some of that weak acid created by the dissolved CO2. Overnight the plants release CO2 instead, causing a reduction in pH.

Also remember that since shrimp tanks are often low in minerals, and also in your case already acidic (pH 5.8 to 6.0), it doesn't take much change in CO2 (or any acid for that matter) to cause a large change in pH because there are few mineral ions to buffer against the acid.

Share this post


Link to post
Share on other sites
Sprae

Thanks fishmosy. I have lights on from 2pm-10pm (8hrs) so photosynthesis in that period should raise my pH?

Share this post


Link to post
Share on other sites
fishmosy

Absolutely, i wouldn't be surprised if you noticed a difference in pH in as little as 1 hour after your lights come on, depending on the accuracy/sensitivity of your pH test of course (e.g. Digital pH meter vs. pH colour indicator)

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  



  • Must Read SKF Articles

  • Register today, ask questions and share your shrimp and fish tank experiences with us!

    Join Our Community!

  • Posts

    • Cesar
      IME, the healthiest and highest quality has always buying directly from hobbyist, usually a small setup in their garage or fish room. Next was specialty store/importer, last is the local TFS, both often having stock that has been imported, transported and kept in less than ideal conditions... Buying directly from hobbyist has always produced the best results for me...
    • Steensj2004
      Did boil a few times, the water wasn’t completely clear when I stopped cleaning it. So they should be getting some tannins. I was able to remove all but one rock, I have one more piece to put in in its plAce today.   Right on. I’m originally from Ohio, and I’ve been scoping out Flip’s videos and website for a few weeks now. Looks like I’ll be ordering from either Flip or AquaHuna after I get this tank works out completely.   TDS is already down slightly after removing the rock and doing a small water change. I also took the opportunity to remove some plants I wasn’t a fan of and replace them. Indian Almond Leaves came in today too, but my BacterAE is delayed. Thanks Amazon.🙄🙄
    • Goshio22
      Its about 1 cm its definitely of breeding age.. i would be happy if its male, but my eyes is untrained when it comes to fully colored males.
    • sdlTBfanUK
      I would think that is a male IF it is old enough to be able to tell but I think it is maybe too young to tell? This video should give you some handy tips for seeing the differences! https://skfaquatics.com/forum/forums/topic/14104-telling-male-from-female-shrimp/ Simon
    • Goshio22
      Im having a hard time trying to figure the gender of my shrimp.. so i know that virgin females is usually more skinnier than your usual large females..  My shrimp are mostly average grade fire reds, most of the males seems pale in coloration. Can anybody help me?
×