The Kent Marine HiS is a good one.

But really, you should not have a problem with
diatoms other than the fact that it will grow on
your front glass, and your front glass has to be
cleaned off. I've even deliberately added potassium
silicate to my reef tanks, to encourage diatoms, and
never had any problems with diatoms. Things usually
balance out soon.

I'd say that there's something else wrong besides
silicates. Getting a good RO might help.

How long have you had your tank? Any recent moves or
major changes?


Wayne Sallee
Wayne's Pets


KurtG wrote on 5/14/2007 2:11 PM:
My diatoms are back. I replaced the material in my phosphate reactor
which knocked them back for a few days, but they rebounded again. My
nitrates and phosphates are both undetectable.

I'm thinking this is silicates although I'm still waiting the arrival of
my test kit. I thought my RO/DI unit would take care of this, but I
also heard that it only works on silicates for the first 100 gallons.
Is there a better DI media for this?

I'm doing 10 hours of lighting and I haven't changed this for a long
time. I'd hate to change it because my ritteri is finally looking good
after nearly 6 months of nursing it back to health.

Any ideas?

--Kurt