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View Full Version : Yellowish patches under sand

kevinrf
03/03/2012, 07:47 AM
55g 24x24x20 w/ sump w/ refuge/cheato, skimmer, filter sock, rodi, 8% weekly water changes
tank has been cycled since dec.
(2)mp10wes in reefcrest mode at 40%
CaribSea Dry Aragonite Special Grade Reef 1-2inch sand bed

Tank Inhabitants:
melanarus wrasse
2 baby b&w clowns
tail spot blenny
yasha goby
pistol shrimp
a lot of assorted snails
few hermits

I'm having patches of an almost yellowish tint UNDER the sand. How do I go about getting rid of this?
jong11
03/03/2012, 07:59 AM
I think this is normal. You can see it through the glass? I have the same sand also yellowish patches. Do you have any sand shifters? Perhaps pick up some nassarius snails to help.
kevinrf
03/03/2012, 08:07 AM
I think this is normal. You can see it through the glass? I have the same sand also yellowish patches. Do you have any sand shifters? Perhaps pick up some nassarius snails to help.

I only see it through/up against the glass around the tank. I haven't been "sifting" through the sand.

I do have quite a few nassarius snails. I got the 50g cube reef cleaner package from reefcleaners.
michaelr
03/03/2012, 10:27 AM
could it be cyano? under control of course. Knowing cyano its probably living on ambient light through the glass hah
aleonn
03/03/2012, 02:43 PM
A photo would be great, as I can't fully visualize the yellowish tint. It could be a fine layer of detritus, where a fighting conch would be of some benefit. Also, is this a mature sand bed?
kevinrf
03/03/2012, 03:48 PM
A photo would be great, as I can't fully visualize the yellowish tint. It could be a fine layer of detritus, where a fighting conch would be of some benefit. Also, is this a mature sand bed?

sand bed has been in since December.

http://img.photobucket.com/albums/v208/kevin85193/IMAG0482.jpg
aleonn
03/04/2012, 11:58 PM
The photo doesn't show up for me.
kevinrf
03/05/2012, 07:37 AM
http://img.photobucket.com/albums/v208/kevin85193/Fish%20Tank%20030412/IMAG0482.jpg
Green Chromis
03/05/2012, 09:14 AM
That looks like some type of algae on the glass. :D
aleonn
03/05/2012, 01:39 PM
It looks like algae to me too. With a little bit of cyano. Your grain size sand looks pretty coarse, is it crushed coral?