I have a 25l tank and have 4 neon tetras and 4 male guppies. I feed the guppies with flakes but the neon tetras aren’t surface feeders so I feed them sinking pellets however even though the pellets are small most of them can’t fit them in their mouth. Does anyone have any ideas for good pellets for tetras. I’m from the uk so I won’t be able to get products from anywhere else.