white stuff developed on pond liner...

[arowfan]

thanks guys...that's what I was thinking-is this a problem? I have 3 rays in the pond-I use 2 prefilters before I put water into my tanks and pond...I guess a lot of calcium is slipping through....
defiantly let me know if this is bad...
thanks guys!!!
john

 

[mshill90]

thanks guys...that's what I was thinking-is this a problem? I have 3 rays in the pond-I use 2 prefilters before I put water into my tanks and pond...I guess a lot of calcium is slipping through....
defiantly let me know if this is bad...
thanks guys!!!
john

I believe you need a special filter to remove calcium.

 

[arowfan]

is calcium a vital mineral to have in our aquarium? and is it bad to have, like in this case...thanks all...i just want to know if this can be potentially dangerous to the rays that's my main concern.
john