Great vid. I almost feel sorry for your cories - the loaches really use their bodies to push everyone away! That big bronze/green one is clearly the boss of the bottom. I have noticed that the more gelatin to baby food ratio, the firmer the block & the longer the "tank life" although I feed one or two 1/4" thick postage stamp-sized snello to my tank (cories, endler's, neons, betta, snails, shrimp - they all love it) and it's gone in 10-12 hours.
Being in Hawaii, you should look for "surimi" or fish paste in local grocery stores (Times guarantee will have it). It comes frozen or fresh in tubs in the fish/meat section... it would work very well in snello (I've used my food processor to mush thawed/peeled shrimp, but this would be a much more convenient method & less air bubbles!).