12 replies to this topic

[jkleejk]

recently got myself new Weipro pH probe to replace my Dernelle pH controller probe for my CR
but somehow my CR is not working right.
to my surprise i found out my weipro pH probe tip (sensor area) grow some hairy algae!!! this is affecting my reading. so my CR when crazy causing my tank kH/pH low.
so i wonder how can hairy grow on the tip of the probe only? my CR is shaded & no sign of any other algae grow.
any bros here experience this problem before?

[Tangs]

Phosphate and Sliicate are the some of the culprits contributing to algae growth and suggest you check your PO4.

[jkleejk]

Phosphate and Sliicate are the some of the culprits contributing to algae growth and suggest you check your PO4.

but only at the probe tip only...this is very strange

[Tangs]

but only at the probe tip only...this is very strange

Not strange as the flow is low ....

[jkleejk]

Not strange as the flow is low ....

sifu,
can explain more detail as i abit blur here

[Living_Stones]

but only at the probe tip only...this is very strange

sorry I couldn't help it. I can jus imagine what the probe must be telling the CR to do, when it photosynthesizes. Thats someting to keep in mind when using employin one.

Hardly strange, though. The tip is leaching PO4. You only need to know why phosphate is added to make plastic. I think the agent is calleed 'plasticizer', or lookup, phosphate hydrolysis in PVC.

[Vanquish]

sorry I couldn't help it. I can jus imagine what the probe must be telling the CR to do, when it photosynthesizes. Thats someting to keep in mind when using employin one.

Hardly strange, though. The tip is leaching PO4. You only need to know why phosphate is added to make plastic. I think the agent is calleed 'plasticizer', or lookup, phosphate hydrolysis in PVC.

Agreed with LS... strange incident but might be due to a leaching of po4... in fact many things in the tank contributes to the leaching of po4, like PVC pipes, the powerheads etc etc, just that very often, one might not realise...

[jkleejk]

U guys got your point.
anyway avoid getting this brand in the future. maybe i am bad luck
any other brand to recommend?

[Tangs]

Been using PinPoint probe (ORP n pH) and has no problems with them so far for all these years. .... touch wood.

[Vanquish]

U guys got your point.
anyway avoid getting this brand in the future. maybe i am bad luck
any other brand to recommend?

think it's just bad luck... could be fuelled by some detritus getting stucked on the tip...

Dun give up hope!

[scarab]

Bro,

Your tank too clean liao until algae has no place to grow but to grow on your 'slightly contaminated' pH probe......

Jokes aside, take it out, disconnect from you pH monitor, soak it in a bit of vinegar for an hour or so then into DI water overnight. You should be ok. You actually need to condition your pH probe by soaking it in DI water overnight before you use it anyway. Not sure if you did that.

[jkleejk]

Bro,

Your tank too clean liao until algae has no place to grow but to grow on your 'slightly contaminated' pH probe......

Jokes aside, take it out, disconnect from you pH monitor, soak it in a bit of vinegar for an hour or so then into DI water overnight. You should be ok. You actually need to condition your pH probe by soaking it in DI water overnight before you use it anyway. Not sure if you did that.

ok thanks for the tips, btw i dont hv DI water, is it RO water serve the same purpose?

[jkleejk]

think it's just bad luck... could be fuelled by some detritus getting stucked on the tip...

Dun give up hope!

I already clean the tip once. now it is back. no much of light source. algae got strong survival skill