Qchan Posted August 17, 2004 Share Posted August 17, 2004 Hi guys, jus did a run of tests on my tank, nitrate is only at 10, zero ammonia, but my pH has dropped from 8.2 to 7.8. I sense something bad happening, any help explaining how this has happened and what i can do to salvage this situation will greatly help. Thank you all. Quote Link to comment Share on other sites More sharing options...
SRC Member bum Posted August 17, 2004 SRC Member Share Posted August 17, 2004 whats your alkalinity? did you just drip kalk? Quote Link to comment Share on other sites More sharing options...
SRC Member AlfaRomeo Posted August 17, 2004 SRC Member Share Posted August 17, 2004 Like Bum said, Alk? Additionally, Ca? Mg? Quote Link to comment Share on other sites More sharing options...
Qchan Posted August 17, 2004 Author Share Posted August 17, 2004 Alk? sorry hehe im newbie i used pH test kit to measure acidity, isn't that same as alkanility? ca is 440 last time i tested it. Mg nvr tested b4, so dunnoe. Please explain alkanility and what it does? Quote Link to comment Share on other sites More sharing options...
SRC Member AlfaRomeo Posted August 17, 2004 SRC Member Share Posted August 17, 2004 Alkalinity is the ability of the water to buffer againts PH dips like what you are facing now. Alk should be at least at a KH of 8 to have rather stable PH. Quote Link to comment Share on other sites More sharing options...
SRC Member nicholasloh Posted August 17, 2004 SRC Member Share Posted August 17, 2004 alk also means carbonate hardness rite? Quote Link to comment Share on other sites More sharing options...
Qchan Posted August 17, 2004 Author Share Posted August 17, 2004 i have a kH of 9... Quote Link to comment Share on other sites More sharing options...
SRC Member pisces Posted August 20, 2004 SRC Member Share Posted August 20, 2004 I used a SuperBuffer dKH from Kent Marine, it helped stabilise my pH and alkalinity. Its a little bit ex though. Quote Link to comment Share on other sites More sharing options...
SRC Member Eric Posted August 20, 2004 SRC Member Share Posted August 20, 2004 Hi guys, jus did a run of tests on my tank, nitrate is only at 10, zero ammonia, but my pH has dropped from 8.2 to 7.8. I sense something bad happening, any help explaining how this has happened and what i can do to salvage this situation will greatly help. Thank you all. Use washing soda or Seachem marine buffer to boost your DKH to 12 and PH to 8.3 I still have more than 3/4 of this seachem marine buffer cos my ph is always above 8.3, if you interested you can have it for $8, self collect at punggol. Eric Quote Link to comment Share on other sites More sharing options...
weileong Posted August 20, 2004 Share Posted August 20, 2004 dK at 8 is perfectly normal. Try increasing the aeration and that should help with the pH swing. My dk at ard 8 and my pH varies between 8.2x to 8.0x in a 24 hrs period. Your CR might be dumping in too much CO2 too. The other possiblity is that you are using a test kit for the pH which shows in inaccurate readings. Quote Weileong's 4ft tank Part I Weileong's 4ft tank Part II Link to comment Share on other sites More sharing options...
SRC Member danano Posted August 20, 2004 SRC Member Share Posted August 20, 2004 Did you take the measurements at the same time of day? And did you measure right after feeding? pH of 7.8-8.2 is not unusual for marine tanks. It's is within acceptable limits. Quote Link to comment Share on other sites More sharing options...
SRC Member aStRoBo| Posted August 20, 2004 SRC Member Share Posted August 20, 2004 different timings also affect the PH.. Quote Everything's sold. Back in 2yrs time. If it's a WRX, it gotta be STI. Link to comment Share on other sites More sharing options...
SRC Member shoelevy Posted August 20, 2004 SRC Member Share Posted August 20, 2004 the term alkalinity in chemistry and in marine hobby is diff. the first refers to ph but the latter refers to hardness of water Quote Link to comment Share on other sites More sharing options...
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