water condition

[little bull]

Recently, just changed the lighting to 4 T5 (2 white and 2 blue) for 2ft tank, after few day, noticed the water looked a bit yellowish

is it because of my lighting? How to keep my water clear? pls advise.

[lightningstrike]

r u running carbon?

[Dazza]

activated carbon will clear up the yellowish tinge.

[little bull]

no, i am not using A.Carbon. some reefer advised me not to use it coz may releaase toxic to my tank. what other mean canremove the yellowish?

[alanseah]

see what brand of carbon u using lor...

who advise you not to use carbon.. that one must be an "expert".. lolz...

[Awgui]

just make sure u change the carbon once in a while then it wun leach back lor.

[beebeefl]

just make sure u change the carbon once in a while then it wun leach back lor.

how long to change the active carbon

[Awgui]

This i cant really be sure. But i think 3-4 mnths should be okie. Maybe experts can advise on this?

[alanseah]

well the usual practice is 1 month then u need to change then out... anything longer.. u do it on your own risk hor..

and also have the correct amt of carbon use... too many.. u see your coral will sure "love" it.. and start closing up..

[ozy]

You have to be careful about the lighting intensity as well. Because of the yellow tint, the lighting penetration is reduced. If you use carbon now, the water will become clear and the lighting intensity will increase from your coral's perspective, even though you did not change the lighting.

If the water cleared up too fast, your corals might experience lighting shock, especially if you are using MH, but I guess T5 should be ok.

To be sure if your water is really yellow, just go to a hardware store and buy a small piece of white acrylic. Dip the acrylic in your tank and you can compare the part that is under that water and the dry portion. If you can see a difference in colour shade, that means the water is yellow. (Learn this from Mr Thiel's book)

[weileong]

The trick is to use very small amount passively changed once a week with slow increase in the amount of carbon.

Make sure use a brand that does not leach PO4 else that will add to your algae problem (if any).

[Alvin Tan]

no, i am not using A.Carbon. some reefer advised me not to use it coz may releaase toxic to my tank. what other mean canremove the yellowish?

can use those from AQUAZ wad..i use it once in a while...

[lightningstrike]

The trick is to use very small amount passively changed once a week with slow increase in the amount of carbon.

Make sure use a brand that does not leach PO4 else that will add to your algae problem (if any).

I agree.

for me, i hv been using 50 grams of Rowa Carbon on my 50 gallon reef setup. the carbon is placed in a filter sock and situated at a low flow area. the carbon is changed out every 7 to 10 days.

[little bull]

Thank yoiu for all the advises, really help a lot, will use carbon soon, if 2 ft tank.. how much to use and what brand is good to introduce?

[little bull]

got an idea, can the carbon put into the tank coz i am using external filter for this 2ft, not sump tank like other.. a bit leceh to remove the cap lar..

[diabolus]

got an idea, can the carbon put into the tank coz i am using external filter for this 2ft, not sump tank like other.. a bit leceh to remove the cap lar..

just curious...

can i know how often u clean ur cannister filter?

[little bull]

a month plus

[Alvin Tan]

got an idea, can the carbon put into the tank coz i am using external filter for this 2ft, not sump tank like other.. a bit leceh to remove the cap lar..

nah..place it at the filter will be best..

[little bull]

How about place in the tank? bring any harm to coral? What brand of A.carbon is good for marine tank?

[little bull]

Any expert can help to answer the question above? pls..

[FelixSu]

what is the ratio of carbon to place in filter in relation to tank size?

[loowk]

use an ozone generator. Will polish your water cystal clear. did it for mine water clarity spectacular! worth every cent spent on it

[Lester]

hmmm how about using ozone ??? can it be used ?

[loowk]

of course. now using enaly 300y with beckett.