phytoplankton, how much?

[Pomme]

phytoplankton, how much?

i have just been in to my local maidenhead and realised that they sell phytoplankton in there.

i was thinking of adding this to my tank but was wondering if i could grow it myself from a small amount from them?

my idea was to get around 500ml from them and put it in a glass jug and fill the rest up with tank water and place a marine white light next to the jug. and then dose throughout the night using a peripump, and then in the mornings top up the jug with tank water? would this work or not or have i missunrerstood the stuff i have read?

and what sort of amount should i add to my 100 gal sps tank?

all help appreciated,

thanx
andrew

[John Schmelzkopf]

I would be careful, most are grown in fertilizer. If you dose with it, make sure you know whats in the water.