Ocean Rock

[Becks1985]

Y is my ocean rock an coral gravel going a yellow colour...?

 

[MBOU]

It will absorb the colours from the water it is in, either you have a lot of tannins (from wood) in the water, you have algae growing on it or you have treated the tank recently with a medication that has Acriflavin as a main ingredient

 

[Becks1985]

Well I haven't treated my tank with anything the water looks pretty clear an i don't have any wood so don't know lol

 

[MBOU]

That leaves algae then! Ocean rock will start changing colour very quickly and will go through stages of yellow, then brown and then green. Nothing stays white in a tank that's for certain!

 

[Becks1985]

So it's natural the fish will be ok like?

 

[MBOU]

Probably! Though depends on the fish, you don't really want ocean rock in a tank if its all tetras etc as it will really harden the water...