Heavily planted tanks like these normally have a good flow rate so if a fish dies it normally ends up at the front for you to remove. If you notice ones missing, just have a good look and rummage, plants root in quite deep so your not going to do any harm. A dead fish is usually a lot easier to find than you think in a planted scapeSupraman said:Just how do you guys tell If you have lost a fish? I see a lot of people on here that have the really small colourful fish but with all your plants isn't it hard to see if you have a dead fish? And if you did lose a fish doesn't that put the others in danger of getting sick?