Hey Mark, this whole ' floater ' issue has been covered before but i'm going to go over the science of matrix floaters and why you should NEVER keep them.
Back when people got stuff done they used to test if you were a witch by throwing you in a lake all tied up so you couldn't swim. They knew just as we do that witches are made of wood. If you sank and didn't come to the surface ever again you were obviously not made of wood so innocent - YAY !
But.......... if you somehow managed to stay afloat and not drown it was pretty clear you were made of wood and a witch. In these cases they dried you off and then burned you at the stake - NOT YAY !
I don't want anyone taking their floaters out and trying to burn them as we aren't living in the bloody dark ages but the actual science behind witch detection works very well when applied to reefing imho. :reading:
Don't use the floaters is the lesson in all this.
It's the regular matrix mate. To calculate if you have the right amount of matrix for your system you simply make two stacks of 2L containers and put your carbon container on top. If it reaches the bottom of your tank or higher you are spot on, i just checked mine and i pretty much aced it when i guessed i needed about 16L or 1L per 10gal overall system water volume. :smokin:
Biggle Matrix Coefficient - gallons divided by liters of matrix.
BMC should be 1.00 or lower - and NO WE DON'T COUNT THE FLOATERS. :hammer:
150 divided by 16L = 0.93
Since listing my fish the other day i realised the jumpers had lowered mt BFC drastically. 1.28 :facepalm:
After adding 12 yellow striped cardinals my BFC is a more respectable 2.14 :thumbsup: