## I’m thinking about getting an aeration system, but how do I measure my pond’s depth? | Ponds & Lakes Q&A

Q: I’m thinking about getting an aeration system, but how do I measure my pond’s depth?

Lester – Muscantine, LA

A: Measuring the depth of your pond is kind of like measuring the square footage of an unfamiliar living room in the pitch black darkness. You can’t really see what you’re doing and you don’t know what shape it is, so all you can do is follow the walls and hope for the best, right?

Same thing with measuring the depth of a pond. Unless you’ve dug it yourself, there’s no real way of knowing what underwater undulations exist along your pond’s floor. Is the bottom flat? Sloped on one side and really deep in the middle? Are there shallow nooks along the perimeter? All these factors matter. You need to calculate an accurate number that will help you choose the right-sized aeration system for your pond – because its health depends on it.

It’s not difficult to determine how deep your pond is. First, you’ll need some tools, including a tape measure, some string or chain, a weight, something to write with, and a boat or canoe. Here’s what you do with them:

1. Using your tape measure, mark a chain or knot a string in 1-foot intervals. Securely attach the weight to one end.
2. Climb aboard your boat or canoe with your weighted chain or string and note-taking materials in hand.
3. Travel to at least five points in various areas your pond, more if your pond is particularly large.
4. Drop the weight into the water and note where you feel it hit the bottom. Repeat until you’ve gone to all the different spots and gathered a good sampling of your pond’s depth.

When you’re done, write down the maximum depth and calculate the average of the measurements you took. If the maximum depth is less than 6 feet deep, the Shallow Water Series™ Aeration System is a good choice. It features an energy-efficient, dual-diaphragm compressor that delivers oxygen to the water via two self-weighted membrane diffusers.

If the maximum depth of the pond is greater than 6 feet deep, the Pond Series™ Aeration System is the one for you. It’s powerful enough to aerate ponds up to 4 acres and can be easily adapted to fit uniquely shaped ponds, thanks to its multi-plate design.

Don’t forget: If you’re not sure which Airmax® Aeration System is right for you, we can help! After you do your depth measurements, we can do an aerial mapping to determine which system is best for your pond. Call today to speak to one of our aeration experts: 866-POND-HELP (866-766-3435) or use the Web Aeration Mapping Form.

Pond Talk: Do your Father’s Day plans include some rest and relaxation by your pond or lake?

## One of my fish isn’t swimming upright. What’s wrong?| Decorative Ponds & Water Gardens Q & A

Q: One of my fish isn’t swimming upright. What’s wrong?

Cherie – Englewood, CO

A: Unless you’ve taught your pond fish some pretty cool party tricks, it’s possible that they’re not getting enough oxygen due to a lack of aeration.

Fish will display some odd behaviors when they’re not getting enough oxygen, including gasping for air at the surface, hanging vertically in the water, and spending a lot of time around the waterfall or stream where oxygen levels are at their highest – at least for the few hours each day when the pump is running.

Some other telltale signs of insufficient aeration are:

• The water in your pond appears to be stagnant in certain areas
• You’ve noticed a growing mosquito problem
• Algae growth always seems to be a battle you can’t win
• Muck has accumulated at the bottom of the pond

Medical issues, like swim bladder problems, could be causing your fish to swim sideways, too. But, before you take your finned pal to the veterinarian, try adding or adjusting the aeration in your water feature. You can also check your ammonia and nitrite levels using a water test kit.

If your pond has a lot of fish for its size, or is a medium or large water garden or koi pond up to 16,000 gallons in size, consider adding an Airmax® KoiAir™ Aeration Kit. Its energy-efficient design includes a dual diaphragm pump that infuses oxygen into the pond while being virtually maintenance free.

If you have a handful of fish in a smaller pond that’s up to 2,000 gallons in size, check out the Airmax® PondAir™ Aeration Kits. It’s designed for decorative ponds and water gardens, and features an airflow control valve that allows you to adjust the aeration output with the turn of a dial.

Aeration should help your fish swim upright again. But if it’s still acting strange after you’ve pumped up the oxygen, you may want to check in with your veterinarian for medical advice. Good luck!

Pond Talk: What’s the strangest thing you’ve seen your pond fish do?