Deresa bleaching

silas k · #1 12/17/2007, 03:38 PM

I have hav a t. deresa for 4-5 months now and is has been doing fine .. now i just find out that it is turning white in the middle .. what should i do .. ??

a4twenty · #2 12/17/2007, 05:07 PM

is this in the 75l tank with the 150MH light?

how old is the bulb and what kelvin is it?

can you post a picture?

silas k · #3 12/18/2007, 10:36 AM

yes ? its approx 15 gallon

a4twenty · #4 12/18/2007, 04:06 PM

Quote:

Originally posted by a4twenty

how old is the bulb and what kelvin is it?

can you post a picture?

the kelvin is the color temp ( ie 10k, 15k, 20k )

silas k · #5 12/18/2007, 05:38 PM

the bulb is 14000 kelvin sry i didn't see you asked that and its about 6 months old.

i can post a picture tomorrow but theres really nothing to see it has its normal skin texture ( if u know what i mean) its just white ? ?

a4twenty · #6 12/18/2007, 06:25 PM

how deep is the tank and where is the clam?

that light in what i presume is a fairly shallow tank should be fine. is there a chance that he was shocked by to much light to fast? ( moving from bad lighting ) or is being shaded by something?

mbbuna · #7 12/18/2007, 07:52 PM

photos always help

silas k · #8 12/19/2007, 07:10 PM

the tank is 40 cm tall. and its not shaded and ive had it for 5 month and its just started to bleach now

.. its on the sandbed..
i will get a photo when it opens up enough to see it properly

a4twenty · #9 12/20/2007, 06:28 AM

there are other reasons for bleaching, they just aren't very common in our tanks. a picture will hopefully tell the story.

silas k · #10 12/22/2007, 08:21 AM

ill see if i can take one but its not fully opened so i can't really see it on a camera.

jmaneyapanda · #11 12/23/2007, 08:00 AM

What is the temperature swing? 15 gallon can have a big swing with a MH over it. Also, how about salinity?

silas k · #12 12/27/2007, 07:18 AM

the temperature swing is maybe 3 celsius from mid day - night .. and the salinity swing is maybe 1-2 over 2 days.