they're all eating properly and make sure each one gets
enough food. This is especially important with the little
ones. Look for problem signs like white specks on the
body, missing scales or cuts and scratches.
changes in a particular fish's 'personality' should
also be noted - for example if a normally active fish
becomes shy and retiring, or if a usually well-mannered
fish becomes aggressive and agitated.
you notice anything wrong, you should first check the
water, using available testing kits to check its condition.
A water change of up to half the tank's volume can bring
immediate relief in a crisis, but you'll still need
to address the original cause of any water quality problems,
for example overfeeding or a clogged filter.
are available for many common diseases but read the
labels carefully and get advice if in doubt. Some treatments
for sick fish may harm other things like plants, shrimps