Go Back   Aquarium Advice - Aquarium Forum Community > Freshwater > Freshwater & Brackish - Getting Started
Click Here to Login

Join Aquarium Advice Today
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
Old 09-24-2018, 09:17 PM   #1
Aquarium Advice Newbie
Join Date: Sep 2018
Posts: 1
Cycling 5 Gallon - PH drops?


First post here and back to an aquarium after 20 year layoff. I'm cycling (fishless) a small five gallon with live plants. Everything has been going along fine, and the cycling has just started (see readings below), but I noticed that as the Nitri(a)tes have started to rise, the PH is taking a drop pretty quick!

I plan on a small school of Endler's and perhaps a few shrimp later. But this drop in PH has me wondering....

Last week, the PH had been holding steady at about 7.1 Today's readings are:

Ammonia: .25
Nitrite: 2ppm
Nitrate: 10ppm

PH: 6.6

So I take it the cycle is ramping up. But:

Why the sudden PH drop?

Secondary: should I start water changes or is that not necessary since it's fishless?


CrowGoat is offline   Reply With Quote
Old 09-24-2018, 10:36 PM   #2
Aquarium Advice Addict
Community Moderator
Fresh2o's Avatar

Tank of the Month Award
Join Date: Jun 2012
Location: Northern Virginia
Posts: 12,824
Welcome to AA and welcome back to the hobby.
The pH drop may be a natural occurrence as a result of nitrification (by the bacteria). It may be further enhanced by a low KH level. I would not worry about it unless it drops below 6.0
I am an ALGAE farmer.
Terms of Service | Community Rules | FresH2O's Planted Tank | Fresh2o's Shrimp Tank
Fresh2o is offline   Reply With Quote

5 gallon, cycling, drop, gallon

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ph drops significantly...what is going on? (Update) Jchillin Freshwater & Brackish - Getting Started 30 06-06-2005 12:32 AM
Major pH drops! Help Please! gmac Freshwater & Brackish - General Discussion 8 11-01-2004 10:16 AM
How about those Clear Water drops? grimlock3000 Freshwater & Brackish - General Discussion 7 01-06-2004 08:47 PM
How long after last ick drops off to return to main tank? jamal-188 Saltwater & Reef - Sick Fish or Coral 12 11-20-2003 09:14 PM
Copper in Q tank, how long till ICK drops off? jamal-188 Saltwater & Reef - Sick Fish or Coral 2 10-09-2003 10:25 AM

» Photo Contest Winners

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 08:18 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.