calcium and kh issue

[redadeath]

my calcium is 460 and kh is 11
i can see some white powder on the power head ! what is that ???

magnesium is 1240 or 1340 the test kit is inaccurate for around 100 ppm but i deal as if it is 1340 so i be safe from overdosing
also what should i do to maintain the good balance

i use randy's recipe 2 should i dose more kh or boost it to 12 ??

my tank is 132 gallon

last quistion
my coraline algae has white spots on it and white ring at the edges is that periciptaion or calcification

thank you all

 

[Randy Holmes-Farley]

White spots and rings on coralline is often growth. I cannot be sure what you are seeing on the powerhead, and it may be calcium carbonate, but from your numbers everything is normal.

I would not boost the alk any higher.

 

[redadeath]

thank u randy i will show u pictures few minutes later

 

[redadeath]

 

[Randy Holmes-Farley]

The coralline white spots look like growth. The bottom powerhead has coralline. I can't be sure what is on the top powerhead, but it might be coralline.

 

[redadeath]

so how is the calcium residue looks like ?

 

[fishflorist]

pic2 looks like only dust and I think it should be easy to clean. Same as the dust on the bottom of the tank. Pic4 is the calcareous alga (is that the same thing Randy calling it as "coralline", sorry I dont speak English), I heard it grow quick when Ca KH and Sr at a high level ?

and CaCO3 deposit will be more easy to show up when KH and Ca is high , and especially at these positions where temperature is relatively higher , inside powerheads and main pump e.g., is that true ?

I heard some of my friends' main pump stuck because of the CaCO3, which is the worst thing and I never want that happen in my tank. so I'd rather keep the Ca and KH level relatively lower, never let the Ca level exceeds 430 and KH exceeds 10.
I am now maintaining them at 385 and 7-7.8.

 

[Randy Holmes-Farley]

Not sure I understand, but I see nothing that should worry you.

 

[redadeath]

i mean how is the form of calcium carbonate periciptaion ? do u have picture ?

 

[Randy Holmes-Farley]

This has more on precipitates of all types:

What is that Precipitate in My Reef Aquarium?
http://reefkeeping.com/issues/2005-07/rhf/index.htm

 

[redadeath]

thank you randy

 

[Randy Holmes-Farley]

:thumbsup:


Happy Reefing.