They are looking good. As far as the miss bars go I think its more genetic then anything. I have over 150 oc babies from 4batches and not a single miss bar. I don't remove any water until about 3 weeks old so I'm sure my water quality isn't the best. I simple start with 3g of water and then by about day 4-5 I start to add about a half gallon a day until its full. Then i do about a 5-10%water change per week.