"semi live rock"

[target001]

hi guys

i have a problem with my live rock, i put it in my tank it lasts about a month and the colour seems to fade as if it were dying? the color goes from bright reddy pink to fadded pink almost white and kinda stays there till it disapears

all my tank lvls that i can test are fine
PH:8.6
ammonia:0
nitrite:0
nitrate:30
calcium:350
i have T5 lights
and 2 canister filters = 1500 ltrs per hour <145 litre Tank>
and a skimmer that skims about a full cup of wet skimate every 2-3 days
i have about 15 kgs of "semi live rock" in the tank

thanx in advance for any suggestions

[geekdafied]

Your calcium is low, ph is a little high, need to test for magnesium and KH or DKH instead of ph. Once you get the balance of those 3, coraline will explode on you.

[clownfish]

Originally Posted by geekdafied

Your calcium is low, ph is a little high, need to test for magnesium and KH or DKH instead of ph. Once you get the balance of those 3, coraline will explode on you.

I gotta ask, I know this ain't my post, but, what you're saying is, calcium, Alkalinity and magnesium must be at a certain level, but what are those levels? I know the pH, but not the rest.

[geekdafied]

Alk 8-12dKH
Calcium 400-450 ppm
Magnesium 1250-1350ppm

[clownfish]

Originally Posted by geekdafied

Alk 8-12dKH
Calcium 400-450 ppm
Magnesium 1250-1350ppm

what do you think of this?: Calcium Additives for Marine Reef Aquariums: Walt Smith's Fiji Gold Coral and Live Rock Supplement and can it be used to aid in raising the levels you've described and also, can it be used while cycling a tank? Thanks.

[geekdafied]

The cycling process, you're just wanting to grow bacteria. Coraline comes after its cycled or almost over. As for dosing calcium, make sure you have a good test kit so you dont accidently over dose cause too much Ca throws everything else off balance, the same not having enough Ca.

[target001]

Originally Posted by geekdafied

The cycling process, you're just wanting to grow bacteria. Coraline comes after its cycled or almost over. As for dosing calcium, make sure you have a good test kit so you dont accidently over dose cause too much Ca throws everything else off balance, the same not having enough Ca.

my tank has been setup for a year surelly its not still cycling is it? i do have greeny brown algie about the tank so it could be.

as for adding calcium i add supplement calcium every week with a my water change and havent seen my calcium lvls rise over 350 (maybe the text kit is ****) the salt i use also contains salt suplement

i use redsea salt,
and redsea calcium +3 contains: calcium,strontium,molybedenum and iodine

what else should i look for in a cycling tank apart from algie?
what can i do to get the cycling process over? eg: take all the fish and coral out

[geekdafied]

I was referring to clownfish still cycling his/her tank.

What lights do you have on your tank, target?

[target001]

i have t5 ho 1:actinics 1:16k

[Otty]

Originally Posted by geekdafied

Your calcium is low, ph is a little high, need to test for magnesium and KH or DKH instead of ph. Once you get the balance of those 3, coraline will explode on you.

+2 on that. Got to know what your Mg is.