Thanks. I see the doctors consult, but I don't think they need it. They are acting very normal, not tired or sick. It's just the health bar won't go up even though I feed them all the time.

I think what happened was I forgot to replenish the food when I switched off my netbook last night so maybe food ran out and they got low health? I'm pretty sure I didn't replenish, but I'm replenished today so I'm hoping a good nights sleep and another day of healthy meals and I might see a change.

I might try the air purifier as the organic foods are using all my money and not doing anything.