"Richard Reynolds" wrote in message news:UU4gb.44510$gv5.34741@fed1read05...
first 53 microns is the smallest alive rotifer !

ok, and what about its eggs floating in the water column?

but if you put water from your rotifers into your phyto
after using a 53 micron sieve the phyto will crash

That is what is happening now :-)

you want to use 2 filters 1 to yank out the rotifers 53 microns what doesnt go thru this
goes back into your rotifer culture,, a second to pull out cilliates 10 micron whatever
doesnt go thru this should go into your reef tank directly itll have food in it.

I got it. Thanks. I was using 23um as a second filter, but I see it is not enough.
Do you maybe know any good place I can buy nylon sieves 10um cut to size of bulk?

then you will still need to add fertalizer but none of the nitrate

ok - thank you.