Hi, i have just got a new 71l tank (i have a few other tanks) & want to keep multi's, i'm not sure how many to keep in a tank this size, when PFK did a shell-dweller tank last year they had 7 in a 63l tank but i've come across people in other forums who think this is excessive despite their diminutive size. also, any ideas where to get shells from?
many thanks.
many thanks.