how big do LDA33 get to?

HI
are the prawns you use cooked and shelled and where can i get spirulina?

cheers

hi
just been there bought and 5, they had 21 in the tank be for i got there, not a bad size i think someone bought another 5 over the phone while i was there.

in samon and trout farming we used to use Benzocaine to knock out fish, it also makes you hands go numb if you forget your golves