Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater Reef Aquaria
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 03-30-2011, 12:42 PM   #1
Aquarium Advice Apprentice
 
Join Date: Feb 2011
Location: East Sussex
Posts: 38
Unhappy pH just keeps dropping...but WHY?

To anyone who may be able to help,

I am new to reef aquaria, I have a 15 Gallon display tank and a 15 gallon sump tank, I have a 70Gal prism skimmer (overkill I know) which I haven't used untill recently due to lack of need. Both tanks have a 3 inch aragonite sand bed, I made my own live rock which I cured for about two years, not because I was patient, but because i've been saving and gearing up to this for that long!

About 4 months ago I put in two pieces of live rock to seed the tank and begin cycling, The tank has cycled and all the parameters have leveled out, Nitrates and ites are near enough 0, however I have started using the skimmer to slow the growth of some seaweed that has taken over my tank!

The problem is the pH, it has settled out at just above 7, I have remedied this by adding reef buffers, raising the alk and adding kalkwasser, but whatever I do it just settles back down to 7.7 ish overnight, I have Mysis shrimp coming out of my ears, a small turbo snail which snuck in on one of the rocks, tons of little tenticles poking out of gaps and small white tubes, a mysterius little mushroom thing has just started growing, thee are worms, little starfish... basically the tank is thrumming with life, when I was permenantly treating the tank i bought 5 turbo snails and 5 red hermits, needless to say when I wasn't here for a week the pH dropped again and I was left with onlt 1 of each :'(
Also the coraline algea will not grow, It started a bit when the pH was good but now its stopped again

Two questions really, how come if reef life is so delicate so much life has survived these low pH's

and please please can someone help me figure this out, and sort out the pH

I have two t5 bulbs, one blue and one white, prism skimmer, good water flow,
7.7ish pH, 14dKH alkalinity, 440ppm Calcium, 0 nitrites, negligible nitrates (after all almost no large life in the tank)
__________________

__________________
Sebastian_Troy is offline   Reply With Quote
Old 03-30-2011, 12:48 PM   #2
Aquarium Advice Addict
 
bavass's Avatar

POTM Champion
 
Join Date: Dec 2006
Location: Waynesboro Virginia
Posts: 1,797
How do you have your power heads postioned? Are they turning over the water on the surface? PH can be balanced out by oxygen, so keep your skimmer running because the provides oxygen and point your powerheads towards the surface for oxygen and gas exchange.
__________________

__________________
bavass is offline   Reply With Quote
Old 03-30-2011, 01:09 PM   #3
Aquarium Advice Apprentice
 
Join Date: Feb 2011
Location: East Sussex
Posts: 38
The surface of the water in my tank is clear, as opposed to having a film of floating stuff, so I assume that means I have a good surface water turnover, also I will leave the skimmer running thanks
__________________
Sebastian_Troy is offline   Reply With Quote
Old 03-30-2011, 01:20 PM   #4
Aquarium Advice Addict
 
bavass's Avatar

POTM Champion
 
Join Date: Dec 2006
Location: Waynesboro Virginia
Posts: 1,797
The mian place you get oxygen from is the surface of the water being turned over. Just because its clear of a film doesnt mean you have proper flow. Here is a great example of surface turn over

YouTube - Polario ML22 surface turbulence
__________________
bavass is offline   Reply With Quote
Old 03-30-2011, 01:38 PM   #5
Aquarium Advice Apprentice
 
Join Date: Feb 2011
Location: East Sussex
Posts: 38
Well I gave my tank a check all over, there aren't any stagnant areas, and the surface is moving well, also the water flowing into the sump has good contact with air before entering the water there, so I don't think that a lack of oxygen is causing such a large shift in pH, i mean it's been as low as 7.4 before
__________________
Sebastian_Troy is offline   Reply With Quote
Old 03-30-2011, 01:56 PM   #6
Aquarium Advice Newbie
 
Join Date: Mar 2011
Posts: 4
It might be your kh get a kh tester
__________________
Tarchipmyster is offline   Reply With Quote
Old 03-30-2011, 02:01 PM   #7
Aquarium Advice Apprentice
 
Join Date: Feb 2011
Location: East Sussex
Posts: 38
Like I said my alkalinity is steady!

Sent from my iPhone using Aquarium
__________________
Sebastian_Troy is offline   Reply With Quote
Old 03-30-2011, 02:04 PM   #8
Aquarium Advice Newbie
 
Join Date: Mar 2011
Posts: 4
Oooooo ok not sure then it's very difficult to tell
__________________
Tarchipmyster is offline   Reply With Quote
Old 03-30-2011, 03:34 PM   #9
Aquarium Advice Addict
 
bavass's Avatar

POTM Champion
 
Join Date: Dec 2006
Location: Waynesboro Virginia
Posts: 1,797
Here is an idea do you have any rock out of the tank? Maybe take 2 bukets of water test ph, put a rock in one and nothing in the other and see if its something with your rock maybe.
__________________
bavass is offline   Reply With Quote
Old 03-30-2011, 03:39 PM   #10
Aquarium Advice Apprentice
 
Join Date: Feb 2011
Location: East Sussex
Posts: 38
Beat you to that, I have some un cured rock, and i took a cured rock out of my tank, I've tried them in salt and RO water, cured rock in both doesn't change the pH, I replace it with uncured rock and the pH shoots through the roof (way up to nearly 13!) So its not the rock, I'm really confused by the pH, It's my first tank and with my budget I can't afford to just rip it all out and start again, besides I've waited sooooo long for my tank and it's only just coming to fruition!
If nobody knows why its doing this perhaps some tips to try and keep it in check? Also the pH is really stable, surprisingly barely swings around at all...
__________________

__________________
Sebastian_Troy is offline   Reply With Quote
Reply

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 dropping BrianGray Freshwater & Brackish - Unhealthy Fish 6 08-25-2010 10:35 PM
just dropping by to say... hollywoodheidi Member Introductions 4 10-21-2007 10:45 PM
just dropping by to say... hollywoodheidi Member Introductions 8 10-20-2007 10:31 PM
I have not been dropping by too much lately but... DragonForce Saltwater & Reef - Getting Started 10 01-25-2006 09:21 PM
Why is my Kh dropping? fastfly48 Freshwater & Brackish - Planted Tanks 7 12-08-2005 12:22 AM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 10:55 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.