mengyang_neo Posted November 27, 2007 Share Posted November 27, 2007 Hi, may i know how to tune a CR? i have a ph probe also, when i run it the hp probe indicated 7.2 and after operate for 5 hrs still 7.2. What is wrong. i thought the ph should go down right? Quote 5x2.5x1.5ft Rimless Dream Tank (06/03/12) Skimmer - Reefoctupus Return Pump - 1 x Eheim 1264, 1 x water blaster 7kWavemaker - 2 x mp40esChiller - Daikin compressor with coil drop inLighting - 4 x 80w T5 Pair 1(6hrs23/12/12),Pair 2(16/06/12312hrs 2 x 80w De-lighting Retrofit (1/3/12) -(15/11/12)6hrs and 2 x 80w De-lighting Retrofit (13/10/12) -6hrs) Reactor - Dosing pump (01/01/11) Link to comment Share on other sites More sharing options...
SRC Member reeftask Posted November 27, 2007 SRC Member Share Posted November 27, 2007 pH should go up in marine, not down. You have too much calcium and PH 7.2 is very very bad Quote Link to comment Share on other sites More sharing options...
Gouldian Posted November 28, 2007 Share Posted November 28, 2007 Hi, may i know how to tune a CR? i have a ph probe also, when i run it the hp probe indicated 7.2 and after operate for 5 hrs still 7.2. What is wrong. i thought the ph should go down right? Hi bro, pH inside the CR reaction chamber should be around 6.7 depending on what medias is being used. pH in your tank should be around 8.2 depending on your lighting schedule. If your pH inside your chamber is 7.2 after 5 hours, I suggest you increase the co2 count slightly and monitor that the pH will maintain around 6.7. Once that happens, you are consider your CR is tuned. HTH Quote "Reefs, like forests, will only be protected in long term if they are appreciated" Dr. J.E.N. Veron Australian Institute of Marine Science -----------------------------------------------------------------------Member of:UEN: T08SS0098FPlease visit us here: http://www.facebook....uaristSocietySG Facebook Group: http://www.facebook....gid=34281892381 Link to comment Share on other sites More sharing options...
SRC Member barnacle Posted November 28, 2007 SRC Member Share Posted November 28, 2007 pH should go up in marine, not down.You have too much calcium and PH 7.2 is very very bad He's refering to PH of CR for starting, try this....1 drip 1 sec, 1 bubble 3 sec. If PH still high, increase Co2. Quote My Tank Link to comment Share on other sites More sharing options...
mengyang_neo Posted November 28, 2007 Author Share Posted November 28, 2007 Hi bro, pH inside the CR reaction chamber should be around 6.7 depending on what medias is being used. pH in your tank should be around 8.2 depending on your lighting schedule. If your pH inside your chamber is 7.2 after 5 hours, I suggest you increase the co2 count slightly and monitor that the pH will maintain around 6.7. Once that happens, you are consider your CR is tuned. HTH My ph probe is put inside the sump, and the ph reading is 7.2. Is it fine? And one more question, 7.2 is not my tank ph right? the ph probe is use to indicted the amount of calcium in the tank right. Quote 5x2.5x1.5ft Rimless Dream Tank (06/03/12) Skimmer - Reefoctupus Return Pump - 1 x Eheim 1264, 1 x water blaster 7kWavemaker - 2 x mp40esChiller - Daikin compressor with coil drop inLighting - 4 x 80w T5 Pair 1(6hrs23/12/12),Pair 2(16/06/12312hrs 2 x 80w De-lighting Retrofit (1/3/12) -(15/11/12)6hrs and 2 x 80w De-lighting Retrofit (13/10/12) -6hrs) Reactor - Dosing pump (01/01/11) Link to comment Share on other sites More sharing options...
SRC Member BFG Posted November 28, 2007 SRC Member Share Posted November 28, 2007 If you want to measure the ph of the effluent of the CR, drip the effluent into a container with your ph probe. A small one will do. Let the effluent overflow from the small container into the sump. That's another way to measure the ph of the CR effluent without having the ph probe in the CR itself. http://www.melevsreef.com/calcium_reactor.html Hope this helps ! Quote Link to comment Share on other sites More sharing options...
SRC Member barnacle Posted November 28, 2007 SRC Member Share Posted November 28, 2007 My ph probe is put inside the sump, and the ph reading is 7.2. Is it fine?And one more question, 7.2 is not my tank ph right? the ph probe is use to indicted the amount of calcium in the tank right. If u put it in ur sump,I afraid that is ur tank Ph. and it is use to measure Ph not calcium. In order to know the amount of Calcium in ur tank ...u need a calcium test kit or CA monitor.. Quote My Tank Link to comment Share on other sites More sharing options...
SRC Member reeftask Posted November 28, 2007 SRC Member Share Posted November 28, 2007 He's refering to PH of CR for starting, try this....1 drip 1 sec, 1 bubble 3 sec. If PH still high, increase Co2. LOL, no wonder the pH is so low, LOL. Quote Link to comment Share on other sites More sharing options...
mengyang_neo Posted November 29, 2007 Author Share Posted November 29, 2007 If you want to measure the ph of the effluent of the CR, drip the effluent into a container with your ph probe. A small one will do. Let the effluent overflow from the small container into the sump. That's another way to measure the ph of the CR effluent without having the ph probe in the CR itself. http://www.melevsreef.com/calcium_reactor.html Hope this helps ! I put it in the container liao, the ph is 7 so do i on the co2 and run it or let it drop till around 6.5 then tune? I check my calcium is more then 480 Quote 5x2.5x1.5ft Rimless Dream Tank (06/03/12) Skimmer - Reefoctupus Return Pump - 1 x Eheim 1264, 1 x water blaster 7kWavemaker - 2 x mp40esChiller - Daikin compressor with coil drop inLighting - 4 x 80w T5 Pair 1(6hrs23/12/12),Pair 2(16/06/12312hrs 2 x 80w De-lighting Retrofit (1/3/12) -(15/11/12)6hrs and 2 x 80w De-lighting Retrofit (13/10/12) -6hrs) Reactor - Dosing pump (01/01/11) Link to comment Share on other sites More sharing options...
SRC Member reeftask Posted November 29, 2007 SRC Member Share Posted November 29, 2007 I put it in the container liao, the ph is 7 so do i on the co2 and run it or let it drop till around 6.5 then tune? I check my calcium is more then 480 Now you have to change water. Quote Link to comment Share on other sites More sharing options...
mengyang_neo Posted November 29, 2007 Author Share Posted November 29, 2007 do a mass change of water? my ph drop till 6.9 liao. Quote 5x2.5x1.5ft Rimless Dream Tank (06/03/12) Skimmer - Reefoctupus Return Pump - 1 x Eheim 1264, 1 x water blaster 7kWavemaker - 2 x mp40esChiller - Daikin compressor with coil drop inLighting - 4 x 80w T5 Pair 1(6hrs23/12/12),Pair 2(16/06/12312hrs 2 x 80w De-lighting Retrofit (1/3/12) -(15/11/12)6hrs and 2 x 80w De-lighting Retrofit (13/10/12) -6hrs) Reactor - Dosing pump (01/01/11) Link to comment Share on other sites More sharing options...
SRC Member ClOwNy_LoVeR Posted November 30, 2007 SRC Member Share Posted November 30, 2007 bro normal tank water should be 8.3 for ph.i think you better change as much as possible.are there any living things in the tank already? Quote Link to comment Share on other sites More sharing options...
SRC Member loster Posted November 30, 2007 SRC Member Share Posted November 30, 2007 i am confused with your statments and others input here and there... your ph prode place in your sump or where? it is measuring your tank water or cr effluent (drip)? your questions here are not clear if your ph probe place in your SUMP and it's measuring your tank water and it gives very low reading... you should re-calibrate your ph meter. if your ph probe place in the sump with the container or whatever to measure your CR EFFLUENT, then you are on the right track. just slowly increase the bubble count of your c02 till your ph from your CR EFFLUENT drop to 6.7 (whatever which media you use). hope this is clear to you and to us if your Ca is 480ppm, don't need to worry. just leave it and it will drop. after it drop to the desirable level then you tune your CR (either bubble count or effluent) to the desirable level of your kh and ca you want Quote Link to comment Share on other sites More sharing options...
mengyang_neo Posted November 30, 2007 Author Share Posted November 30, 2007 i am confused with your statments and others input here and there... your ph prode place in your sump or where? it is measuring your tank water or cr effluent (drip)? your questions here are not clear if your ph probe place in your SUMP and it's measuring your tank water and it gives very low reading... you should re-calibrate your ph meter. if your ph probe place in the sump with the container or whatever to measure your CR EFFLUENT, then you are on the right track. just slowly increase the bubble count of your c02 till your ph from your CR EFFLUENT drop to 6.7 (whatever which media you use). hope this is clear to you and to us if your Ca is 480ppm, don't need to worry. just leave it and it will drop. after it drop to the desirable level then you tune your CR (either bubble count or effluent) to the desirable level of your kh and ca you want Sorry for the confusion, yup ph probe in container in the sump liao, will check the calcium again then tune the ph probe. Quote 5x2.5x1.5ft Rimless Dream Tank (06/03/12) Skimmer - Reefoctupus Return Pump - 1 x Eheim 1264, 1 x water blaster 7kWavemaker - 2 x mp40esChiller - Daikin compressor with coil drop inLighting - 4 x 80w T5 Pair 1(6hrs23/12/12),Pair 2(16/06/12312hrs 2 x 80w De-lighting Retrofit (1/3/12) -(15/11/12)6hrs and 2 x 80w De-lighting Retrofit (13/10/12) -6hrs) Reactor - Dosing pump (01/01/11) Link to comment Share on other sites More sharing options...
SRC Member loster Posted December 1, 2007 SRC Member Share Posted December 1, 2007 so, your ph probe is measuring your CR EFFLUENT no... you check your kh and ca and then tune your CR accordingly to the desire level you want. tune by increase or decrease your bubble count of your C02. increase bubble count - CR ph drop, therefore ca and kh increase decrease bubble count - CR ph rise, therefore ca and kh decrease Quote Link to comment Share on other sites More sharing options...
mengyang_neo Posted December 1, 2007 Author Share Posted December 1, 2007 Now my ca is 450 and kh is 6, then my ph probe reading is 7.1. So what should i do? kh should be between 8-12 right? Quote 5x2.5x1.5ft Rimless Dream Tank (06/03/12) Skimmer - Reefoctupus Return Pump - 1 x Eheim 1264, 1 x water blaster 7kWavemaker - 2 x mp40esChiller - Daikin compressor with coil drop inLighting - 4 x 80w T5 Pair 1(6hrs23/12/12),Pair 2(16/06/12312hrs 2 x 80w De-lighting Retrofit (1/3/12) -(15/11/12)6hrs and 2 x 80w De-lighting Retrofit (13/10/12) -6hrs) Reactor - Dosing pump (01/01/11) Link to comment Share on other sites More sharing options...
SRC Member loster Posted December 1, 2007 SRC Member Share Posted December 1, 2007 Now my ca is 450 and kh is 6, then my ph probe reading is 7.1.So what should i do? kh should be between 8-12 right? what CR media are you using? you may slowly increase your bubble count... to decrease the ph of your CR therefore increase your kh to 8-10. Quote Link to comment Share on other sites More sharing options...
mengyang_neo Posted December 2, 2007 Author Share Posted December 2, 2007 Magnesium pro mix with normal calcium reactor medic that will dissolve off when used. Quote 5x2.5x1.5ft Rimless Dream Tank (06/03/12) Skimmer - Reefoctupus Return Pump - 1 x Eheim 1264, 1 x water blaster 7kWavemaker - 2 x mp40esChiller - Daikin compressor with coil drop inLighting - 4 x 80w T5 Pair 1(6hrs23/12/12),Pair 2(16/06/12312hrs 2 x 80w De-lighting Retrofit (1/3/12) -(15/11/12)6hrs and 2 x 80w De-lighting Retrofit (13/10/12) -6hrs) Reactor - Dosing pump (01/01/11) Link to comment Share on other sites More sharing options...
SRC Member reeftask Posted December 2, 2007 SRC Member Share Posted December 2, 2007 playing like that without any proper knowledge and fast action will end up your tank crash. best you go to loster house and learn Quote Link to comment Share on other sites More sharing options...
SRC Member uyopong Posted December 5, 2007 SRC Member Share Posted December 5, 2007 Now my ca is 450 and kh is 6, then my ph probe reading is 7.1.So what should i do? kh should be between 8-12 right? ur mg how many? seems not balance leh Quote My Tanki Link to comment Share on other sites More sharing options...
SRC Member zipp86 Posted December 6, 2007 SRC Member Share Posted December 6, 2007 hmmm wad woud be best is that you take ur mixed media, divide into half, mix each half with more CA mix to less the amout of MG in your media, alternatively, throw old media and use ROWA C+, best media available:) Quote Link to comment Share on other sites More sharing options...
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