OP
OP
Some updates
It has been a couple of weeks here in south western Sweden with high temperatures (for Sweden). The temperature in the aquarium was up to more than 28 C (82 F). I normally prefer temperatures around 25 – 26 C (77 -79 F). I use cover glass in this construction so I took away a part of it and install a simple computer fan at one of the goosenecks (to my lights). I install a GHL propellerControl (a box that allow you to use a 1-10 V signal from the temperature controller in order to adjust the speed of a 12 V device – like a computer fan) This is one way to create a stable figure but there is also possible to use a more advanced (compared with on-off) control management with the Profilux like pulse variable (in this mode the computer vary the time of on mode according to the desired value and after that wait an adjustable time lap before get in on mode again) I decided to have 25.5 C as wanted temperature. After an initial dip – the temperature has stabilized around 25.5 C. From today I have 26 C as desired value.
In the start I use CO2 scrubber, limewater and from last week – refugium with a reversed light regime. Because I did not want the pH to rise much higher than 8.40 I put a block at pH 8.35 for the limewater. You can see in the graph below when the limewater (in the top off water) kicked in for 25 – 27 of July. 27 of July I skip the limewater. The dip in the morning of 28 of July has also an explanation. We was more people in the flat and I open up the cover glass and ad a cooling fan (see the temperature graph. After this – the pH has been stabilized but – still on a high value.
I have also start to pump some of my skimate down below the DSB and as the graph show – the redox is going down below zero. The profilux handle negative redox measurement - not all aquarium computers do that. The redox at the return water to the sump is rising.
Sincerely Lasse
It has been a couple of weeks here in south western Sweden with high temperatures (for Sweden). The temperature in the aquarium was up to more than 28 C (82 F). I normally prefer temperatures around 25 – 26 C (77 -79 F). I use cover glass in this construction so I took away a part of it and install a simple computer fan at one of the goosenecks (to my lights). I install a GHL propellerControl (a box that allow you to use a 1-10 V signal from the temperature controller in order to adjust the speed of a 12 V device – like a computer fan) This is one way to create a stable figure but there is also possible to use a more advanced (compared with on-off) control management with the Profilux like pulse variable (in this mode the computer vary the time of on mode according to the desired value and after that wait an adjustable time lap before get in on mode again) I decided to have 25.5 C as wanted temperature. After an initial dip – the temperature has stabilized around 25.5 C. From today I have 26 C as desired value.
In the start I use CO2 scrubber, limewater and from last week – refugium with a reversed light regime. Because I did not want the pH to rise much higher than 8.40 I put a block at pH 8.35 for the limewater. You can see in the graph below when the limewater (in the top off water) kicked in for 25 – 27 of July. 27 of July I skip the limewater. The dip in the morning of 28 of July has also an explanation. We was more people in the flat and I open up the cover glass and ad a cooling fan (see the temperature graph. After this – the pH has been stabilized but – still on a high value.
I have also start to pump some of my skimate down below the DSB and as the graph show – the redox is going down below zero. The profilux handle negative redox measurement - not all aquarium computers do that. The redox at the return water to the sump is rising.
Sincerely Lasse
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