Koralith or Caribsea ARM for reactor?

[Dan FlyingPolarBear]

I'm setting up a new Knop C reactor and after reading many articles, I'm not
sure which media to go with, Koralith or Caribsea ARM. Here is what I
heard,

Caribsea:
Dissolves rapidly, uses less Co2

Koralith:
Lower phosphates, less algae growth

One person wrote that Koralith particles tended to clog the reactor,
requiring cleaning every few months. Has anyone else seen this or is this
an isolated case?

Also, Koralith is sold in fine and coarse grains. How does this affect the
reactor?

Thanks,
Dan

[Dragon Slayer]

the ARM does dissolve with a higher pH then other medias so it does save on
CO2. it also has higher PO4 levels then other medias (the German brands)
but IMHO they are minimal and don't contribute to algae problems but will
help out an already problem if you have one. if your tank is fine, the ARM
will work fine. if you have elevated PO4 levels now you might want to check
into a PO4 remover if you go with the ARM.

the Koralith is a much smaller grain size then the ARM and will clog quickly
IF you push the pH down to low but any media will do that. the Koralith is
quicker to do so with the low pH because of its smaller size. if you can
get the German media where your at then I'd go for it, if you have to order
it like me (cant get it local for nothing) then go with the ARM in the 50
lbs bag, saves $$$ that way.

hth
kc



"Dan FlyingPolarBear" > wrote in message
...
> I'm setting up a new Knop C reactor and after reading many articles, I'm
not
> sure which media to go with, Koralith or Caribsea ARM. Here is what I
> heard,
>
> Caribsea:
> Dissolves rapidly, uses less Co2
>
> Koralith:
> Lower phosphates, less algae growth
>
> One person wrote that Koralith particles tended to clog the reactor,
> requiring cleaning every few months. Has anyone else seen this or is this
> an isolated case?
>
> Also, Koralith is sold in fine and coarse grains. How does this affect
the
> reactor?
>
> Thanks,
> Dan
>
>