Fish Health in Hot Summer Heat
by Brett Fogle
Reprinted, with permission, from Pond Stuff, newsletter of
macarthurwatergardens.com
of Baton Rouge, Florida
Aquarticles
Here a couple of things to do to keep your fish healthy and your pond clear during the
heat of summer. First, remember to keep your pond well aerated. This is very important to
your fish because the pond water actually holds less oxygen at higher pond temperatures.
So if it's still hot in your part of the country, keep those waterfalls and fountains
running! This will keep your pond water full of oxygen, and reduce stress on your fish.
If you see your goldfish or koi gasping at the surface, it's a good sign that you don't
have enough dissolved oxygen in the water, and this can be dangerous. Especially if you
have a lot of green water algae in the pond. This algae can absorb much of the oxygen in
the pond water at night and cause very low dissolved oxygen levels during the day - which
can be deadly to fish!
One thing we recommend this time of year, is to do a partial water change. Drain off 10
- 25% of your total pond volume, and replace it with fresh, new dechlorinated water. If
possible, vacuum or drain decaying organic matter and debris off the bottom to reduce the
ponds bio-load.
Your fish will usually be vibrant and playful after a water change. It's like giving
them a 'breath of fresh air' and invigorates them. Again, we only recommend a 10 - 25%
water change right now - but feel free to experiment with whatever works best for your
pond.
Remember to re-add your pond salt whenever you drain and add new water. Having a salt
water test kit is also helpful, or a digital salinity meter, to determine optimum salt
levels.
Brett Fogle is the owner of MacArthur Water Gardens and several
pond-related websites including macarthurwatergardens.com and pond-filters-online.com.
He also publishes a free monthly newsletter called PondStuff! with a reader circulation of
over 6,000 pond owners. To sign up for the free newsletter and receive a complimentary
'New Pond Owners Guide' for joining, just visit http://www.macarthurwatergardens.com
Specializing in pond filtration and clear water solutions since 1995 |