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09/29/2008, 05:30 PM
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#1 |
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Registered Member
Join Date: Sep 2008
Location: Washington
Posts: 23
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why is my ph falling?
so 55gal is cycling water parameters tested by api kits are
alk-8dkh cal-320ppm phosphate- undetectable ammonia-undetectable nitrite-5.0ppm nitrate-40ppm ph-7.4 sg-1.025 checked by refractometer the nitrite has been where it is for 5 days or so the nitrate just showed up in the last 48 hours and the ph has been steadily falling over the course of the cycle is this normal my ro/di water has a ph of 8.3 |
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09/29/2008, 05:36 PM
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#2 |
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Chartered Accountant
Join Date: Oct 2007
Location: Toronto, Canada
Posts: 2,219
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Nothing is going to be very stable during the first month or so your PH will swing alot...even in established tanks that have been running for over a year there is a drop in PH from daytime to the nighttime.
A PH of 7.3 is on the low end though if you really want to increase your PH open up a window to get more O2 into the room. If a room doesn't get outside air CO2 tends to linger and that can cause your PH to drop. If you have a sump you can also put an Air-Stone in there to increase the Oxygen in your water. Make sure that you have good surface flow. Point one of your powerheads towards the surface so you get a nice ripple across your entire system. It makes it easier for the O2 from the outside air to be absorbed when you open the window and get fresh air inside. Hope this helps.
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- Shaginwagon - Current Tank Info: 550 Gallon SPS Reef l 200 Gallon Sump l Skimmer: Vertex Alpha 250 l Return Pump: Reeflo Hammerhead l Tank Circulation: (2) Maxspect Gyre XF280 l Lighting: (3) 400w Halides & (3) AI Hydra 52 HD |
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09/29/2008, 05:42 PM
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#3 |
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Registered Member
Join Date: Sep 2008
Location: Washington
Posts: 23
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ok i just opened the window by the tank and the return from my sump is towards the surface and the water does have a nice ripple to it i dont have a airpump so ill have to get one an add it to the sump to see if that helps
thanks for your help |
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09/29/2008, 06:32 PM
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#4 |
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Bikers are a dying breed
Join Date: Mar 2007
Location: Eliazbethtown, IN
Posts: 142
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In the winter time I have to pump in outside air right over the tank because of having a ventless fireplace running in the house. You don't realize how much CO2 one of those things puts off until you have a tank running.
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Scott Current Tank Info: 265g (Peninsula) 3x400w MH's, 4x95w Actinics, PM Bullet 3 Skimmer, OM 4-way CL, WavySea for return, Kalk Rctr, KNOP Ca Rctr w/PM 2nd Chamber, PM PO4 Rctr, TradeWinds Chiller, ACIII Controller, DelZone O3, 75g Sump, 30g Fuge |
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09/29/2008, 06:57 PM
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#5 |
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Registered Member
Join Date: Sep 2008
Location: Washington
Posts: 23
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thats an interesting idea how do you accomplish this as i do have a fireplace?
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09/29/2008, 06:58 PM
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#6 |
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Registered Member
Join Date: Jun 2008
Location: East Troy,WI
Posts: 88
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How are you pumping in this air? I have CO2 issues as well. I try and keep the windows open as much as possible.
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09/29/2008, 08:22 PM
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#7 |
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Registered Member
Join Date: Aug 2008
Location: Philadelphia, PA
Posts: 401
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i read somewhere that during the cycle the ph wont be stable because of the ammonia or something like that
some part of the cycle keeps it from being stable
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RESEARCH! <º)))>< Very important Sexy Blog? Click the red house! Current Tank Info: 3 gallon pico-zoas, gorgonian, mushrooms, nass snails and sexy shrimp |
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09/29/2008, 09:36 PM
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#8 |
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Registered Member
Join Date: Sep 2008
Location: Washington
Posts: 23
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well i just checked my ph again to see if having the window open would affect it and my ph has risen to between 8.4-8.2 no other changes to tank at all awesome advice thanks
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