Sounds like you're all set!
Tank raised horses are better, usually they are already trained to frozen food, but I've trained wild caughts to frozen too. However, expect to have them eat you out of house and home with
ghost shrimp. Get the sw ones if you can, they won't die and foul the water if not eaten immediately. Offer PE mysis first -- even pre-trained horses should get live ghosts/grass shrimp periodically, gives them something to hunt -- good for morale, as it were!
Jenn
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LFS Owner:
Imagine Ocean

Just keep skimming, just keep skimming, just keep skimming, skimming skimming! What do we do? We skim, skim, skim!