I understand what everyone means about pellet size, however, even with hikari baby pellets the fish still create a mess. I don't believe they would simply swallow the pellets whole at any size. Granted the mess created when using a medium pellet to a smaller pellet is larger, however, i don't think i can sustain these larger fish on tiny pellets because they make a mess. Seems unnecessary. The small hikari pellets are the correct size for sure, the fish just like to chew.
So, i have a good idea of what fish to look for when at my lfs. The medium sized cats seem to be the way to go. Maybe not a syno as he will certainly get fat and lazy in my tank, probably start creating a mess as appose to cleaning it!
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