1. Koi Caves / Hiding Places
2. Decoys Since herons are territorial and often won’t encroach on a rival’s space, setting a decoy heron out by the pond can deter those unwelcome guests. Other decoys such as alligators or swans that heron’s wouldn’t want to tussle with can also be effective.
3. Fishing LineAn observation we’ve made about herons is that they usually enter the backyard ponds from the outside in. As opposed to how ducks will often fly directly into the water. Stringing a perimeter of fishing line around the pond will deter and frustrate the herons from walking in. The fishing line’s thinness and transparency don’t have the same aesthetic detraction as other physical fences or barriers do. It can also be criss-crossed over the pond for an even more robust defense. 4. Motion Activated Sprinklers
5. Guard Dogs & NetsIf you have a particularly persistent heron and other predator control methods don’t seem to be working then the last resort may be to get a dog that will chase it away whenever it lands near the pond.
Try any one or a combination of these ideas to protect your koi & goldfish from the peskiest of backyard predators. There are many more ideas out there to try or maybe even find a creative one of your own! Contact us here at AWM Water Features if you need any help or advice deterring herons or any other pond predators.
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What do the different water quality tests mean on our maintenance reports? |
| Temperature - Many aspects of the pond’s ecosystem are affected by temperature. Aquatic plants time their growth based on the air and water temperatures. Algae and phytoplankton proliferate more in warmer water. The water temperature also determines which strains of beneficial bacteria we apply. |  |
 | If ammonia levels are above 0.5ppm it indicates either overfeeding, too many fish per gallon of pond water, decaying organic matter, or an insufficient biological filter. Ammonia levels will be higher in brand new ponds and the spring and fall as the beneficial bacteria are either just getting established or experiencing stresses. |
| pH - The measure of Hydrogen ions making the water either acidic, neutral, or alkaline. A balanced pH is critical for the health of the pond and its inhabitants. Higher pH levels also increase the harmful effects of ammonia. A range of 6.8 to 8.6 is acceptable for fish and a wide variety of plants. Below a 6.8 pH causes stress to the fish and can be caused by overstocking, improper surface agitation leading to carbon dioxide buildup, or decomposing organic matter. Proper filtration, aeration, and maintenance will help to avoid these problems. |  |
 | Phosphate (PO43-) - Phosphorus is usually the limiting factor in algae growth so it’s presence is indicative of string algae or phytoplankton blooms. Some common sources of phosphorus in ponds are fish food, leaves & tree debris, soil/mulch erosion, and even tap water. Ideally levels should be 0.0ppm and anything over 0.03ppm can contribute to algae growth. Performing regular maintenance, adding plants, and proper biological filtration are the best ways to reduce phosphate levels. |
| Total Dissolved Solids (TDS) - The amount of all chemical ions dissolved in the water such as salts, minerals, and nutrients. The main factor in your pond’s TDS level is the source water used to initially fill the pond. TDS levels will generally become higher throughout the season as water is lost to evaporation but the dissolved solids are left behind. |  |
 | gH (general hardness) - A measure of the overall amount of mineral content in the water such as iron, silica, borate, magnesium, and calcium. The more minerals that are dissolved, the “harder” the water becomes. Up to a certain level, harder water is better for koi fish as it makes their osmoregulation processes easier and harder water can also limit any toxic effects of heavy metals. |
| Copper - In ponds utilizing an IonGen system to control string algae it’s important to monitor the copper concentration to ensure the safety of the fish and the efficacy of the treatments. It is recommended that copper levels not exceed 0.25ppm since higher levels can be toxic to invertebrates and may cause long-term fish issues. |  |
| Dissolved Oxygen - All pond fish require at least 6ppm of dissolved oxygen in the water in order to avoid stress, immune system compromise, stunting, and low appetites. Below 3ppm and koi will quickly suffocate and die. Ideally dissolved oxygen should be above 8ppm for the health of koi and for beneficial bacteria to flourish. Bacteria take much longer to break down nutrients and waste in low oxygen environments so it’s important to supply the biological filter with highly oxygenated water from the surface like most pond’s with a skimmer do. Warm, stagnant water holds the least amount of oxygen so as long as your pond is being aerated and shaded properly oxygen levels should be adequate. |  |
| In Spring we cleaned over 150 ponds and waterfalls and Paul & Cole took a week long trip to Maryland to help out Atlantic Ponds, another CAC. Throughout the year AWM installed over a dozen new ponds and waterfalls. We also had a huge uptick in renovation work and wetland filter upgrades on existing ponds. Take a look at this pool to pond renovation project we did. Our maintenance department nearly doubled in size which kept Eric & Cole plenty busy. |  |
 | For the first time this year we hosted both a spring and fall Parade of Ponds event. We’re so grateful for our customers being willing to showcase the unique water features we’ve built. Another first for AWM this year was hosting the infamous Greg Wittstock “The Pond Guy”. Greg spent a sunny June day in West Michigan touring and vlogging 6 of our favorite projects to feature on his Youtube channel. Check out all the videos here. |
| The Pond Guy’s visit also inspired us to finally build our very own ecosystem pond at home office which we can display to clients, test out new products on, and provide a safe home for our koi and goldfish. Mike’s family loves their new pond and is enjoying living the aquascape lifestyle right off the backyard deck. | |
 Hands of the Artist Sneak Peek |  Pond Trade Magazine Article |
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AWM Water Features
616-460-3966 3357 Brooklyn Ave Grand Rapids, MI 49508 |
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