Organisms, Craspedacusta sowerbii that are occasionally seen in our reservoirs that look like small marine jellyfish actually belong to a different taxonomic class, Hydrozoa, which includes the common hydra. These mostly translucent organisms are about the size of a quarter and feed on tiny zooplankton. Large, non-translucent gonads hang on their underside make them easier to spot on sunny days during the late summer.

Symptoms: Fish look like they have little white salt grains on them and may scratch against objects in the tank. White spot disease (Ichthyopthirius multifiliis) is caused by aprotozoan with a life cycle that includes a free-living stage. Ich grows on a fish --> it falls off and attaches to gravel or tank glass --> it reproduces to MANY parasites --> these swarmers then attach to other fish.

Moon jellies are certainly the most common, but several others occasionally make landing. Portuguese man-of-war can often be blown in with a strong storm from the South. Sea Nettle, Mushroom Jellies, and cabbage Head Jellies are also known to be off the coast and can be blown into shore. Lions Mane Jelly Fish are among the rarest to wash up. They can be as large as 8 feet across and have tentacles 100 feet long.

On the whole, no! We do occasionally get some stingers in the water, but they generally only stay around for a week or two. A wet suit is your best bet against getting stung.

The Channel is too cold and dirty for sharks. On the other hand, the channel is replete with jellyfish. The stings are not fatal but are very painful. Usually this happens as I am taking a stroke and what feels like three or four electrified barbed wires are being dragged across my skin- jellyfish tentacles. The skin usually burns for five minutes and then goes numb. Impressive scars then surface the next day. No channel swimmer is complete without his or her own collection!

Most jellyfish in Australia are harmless gelatinous creatures with umbrella like bodies and flowing tentacles. However, the box jellyfish, found in tropical Queensland, are extremely nasty. Called stingers they can inflict excruciating pain and even death from a single brush. In the wet season (November to April) they live off the coast and swimming is only advised in enclosed areas (most beaches have these).

Place your pond in a place that will maximize your enjoyment. Consider putting it in a place where you can easily view it from rooms where you spend a lot of your time, such as kitchen or family room. Ponds and waterfalls make wonderful additions to the outdoor areas where you relax and entertain such as decks and patios. Some sunlight is good - too much can cause problems. About 1/2 day of sun is usually sufficient to ensure healthy plant growth.

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Yes, it is possible to use a protein skimmer in freshwater. But it makes no sense. The freshwater usage of skimmers does not justify the purchase. The benefits of skimming are only profitable in saltwater - that is why it is commonly believed that skimmers only work in salt. Unless you have scientific information about why the skimmer will work in your fresh environment, it is not advisable to waste your money!

All it means if you have green water is that there are too many nutrients in the water. This can be caused by too many fish, overfeeding the fish, the wrong kind of fertilizer, or lots of rotting vegetation. To combat algae, simply add more plants, decrease the number of fish, feed the fish less or add a filtration system. Don't replace all the water with fresh water... this just gives the algae a fresh supply of nutrients. Adding plants takes away the nutrients the algae needs to survive.

This is such a complex question that we've expanded this answer, and given it a page of it's own. So, CLICKbefore you dig!

Fiddler crabs need access to air and are escape artists. They also do best in a brackish water aquarium, that is a tank with a specific gravity (salinity measurement) of 1.008. They can be kept in freshwater, but in many cases they will only live 2-6 months. You must provide them a way to get above the water, and the aquarium must be completely covered. Otherwise, they will escape every time. There are also red claw crabs. These are sold as freshwater crabs, but this is open to debate as well.

These pearls originate within a saltwater mollusk. Most pearls are cultured, because of lack of efficient and un-polluted waters it is rare to find natural Pearls. Salt water cultured pearls are mostly found in Japan, however, China has greatly improved there quality to match Japanese Saltwater pearls, such as the Akoya pearls from Japan. Freshwater pearl refers to a natural or cultured pearl that grows inside of a freshwater mollusk-which lives in a river or a lake.

All of Florida's freshwater is supplied from the groundwater aquifers. The drinking water supply is also totally dependent on these aquifers. These aquifers discharge around 8 billion gallons of water everyday.

The freshwater fishing synopsis is available from the Ministry of Environment or at licence vendor locations. The Ministry of Environment determines all fishing regulations and restrictions.

Boardwalk Lodge is unique among Alaska's fishing lodges in that it is close to both fresh and saltwater fishing. This makes costly and time consuming fly-outs unnecessary, though they are available if you prefer. The lodge boasts 23 fishable lakes, streams, and rivers within a short, scenic drive, and a fleet of Suburbans to get you to the fish quickly, comfortably, and safely.

That primarily depends on what fish you have - some need salt, some hate it, many may benefit from a little. Here is a short thread which outlines the basic pros and cons.

The Resource Management Act 1991 (RMA) sets the framework for freshwater management, and is administered by the Ministry for the Environment. Freshwater is managed by regional councils who are responsible for the water bodies within their boundaries through implementation of the RMA.