Reef aquariums made easy with 3reef aquarium forums - one of the oldest and friendliest aquarium forums online. 3reef came online in 1996 as 'Three Steps To A Reef Aquarium.' This title was created as an attempt to overcome the common fears associated with keeping a reef aquarium, especially at that time. 3reef still retains its roots and remains a friendly forum for new people interested in aquariums and veteran hobbyist alike.

Sea apples, like most suspension feeding sea cucumbers tend not to waste energy trying to feed if there is nothing around for them to eat. The animals are very sensitive to both flow conditions and the presence of phytoplankton in the water. In my tank, the sea apple will close for days if no phytoplankton is added to the tank, but will start to feed actively within literally seconds of adding phytoplankton to the aquarium. I have actually done this demonstration with a sea apple from one of the local petshops which had not opened since it arrived, and despite the stress of being pulled from the tank and stuck into a bag, by simply adding a squirt of phytoplankton to the bag, I got the animal to open up and immediately start feeding in the bag. In nature, suspension feeding sea cucumbers such as sea apples tend to feed on a regular daily basis. In experiments using large flow-through aquaria fed by unfiltered natural seawater, the regular daily feeding schedule was shown to

coincide with the maximum amount of phytoplankton coming through the system each day (Rabindra et al. 1998). However, when researchers began to filter the seawater, the regular timing of feeding in these cucumbers quickly broke down. The researchers subsequently found that hungry animals in flowing seawater could be induced to feed at any time by simply adding cultured phytoplankton to the tank water (Rabindra et al. 1998).


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One more detail that I think is worth explaining is that like most suspension feeders, these animals use mucus to trap particulates from the water column. However, like other sea cucumbers they lack mucus secreting cells on the feeding tentacles themselves, and instead have a small sac-like structure inside the mouth where the tentacles are covered in mucus before being stuck forth into the water flow to trap more particles. Once a tentacle becomes covered with phytoplankton, that tentacle is popped into the mouth and sucked clean (just like us using our fingers to eat from a honey jar) before being covered in mucus within that sac and deployed once again. This is what leads to the stereotypic feeding behavior of all holothurians in which a single tentacle is withdrawn and sucked clean while the rest are left extended. If the tentacles are not being withdrawn to the mouth on a regular basis, the cucumber is not actually feeding, and the frequency of tentacle withdrawal can be used as a reasonable gauge for how well an animal is feeding. On average, these animals should be sucking a tentacle clean and re-deploying it about once per minute, and it will be faster if the animal is provided with high quality food, such as live phytoplankton, and slower if offered a low quality food such as a commercial invertebrate food based on pea flour and yeast. If the tentacle withdrawal rate is significantly slower than one per minute, then the animal is not getting enough or the proper quality food to feed effectively, and you can be confident that it will eventually starve in your aquarium. If your sea apple is not extending its feeding tentacles, there is a serious problem with either the flow regime or the food that it is being offered.

Despite the recent availability of phytoplankton products in the hobby, however, sea apples continue to have a relatively low rate of success in captivity. In fact, a recent poll of aquarists on the internet suggested that very few people had kept one of these animals alive for 3 years or more. Estimates of the first age of reproduction for many sea cucumbers is on the order of 4-5 years old, and many cucumbers have been found to live for 35 years or more in nature (e.g., Herrero-Perezrul et al. 1999). Given a potential lifespan of decades, our failure to keep these animals alive for any reasonable length of time in captivity is very discouraging. In addition to the misinformation regarding the feeding requirements of these animals, I believe that this low rate of success is also a function of at least a couple of other factors. The first is incorrect flow rate, and the second is physical damage in the aquarium. As I mentioned above, both the presence of food and the proper flow rates are generally necessary for animals to effectively feed. Flow rates need to be reasonably high in order for suspension-feeding sea cucumbers to be able to collect food effectively. In the lab, it appears that turnover rates of between 7-10 tank volumes per hour are required for sea cucumbers to feed in a natural manner (Rabindra et al. 1998). To some extent you can compensate if you do not have a sufficient flow rate in your aquarium by placing your sea apple closer to a pump outlet, but in general, these animals tend to be a moderate flow animal, and do not generally thrive in extremely low flow regimens.

Well, hopefully that provides you with sufficient information to make an educated decision about whether or not your aquarium is suitable for a sea apple. If you decide that you would like to add one of these beautiful and fascinating animals to your tank, I also hope that the information that I have provided here will allow you a good chance at keeping it healthy and happy for a long time in your aquarium!

Sea apples are often harassed by many aquarium inhabitants. Crustaceans, such as hermit crabs, and fish often peck or pick at sea apple's feathery tentacles.[4][7] This may be for predatory purposes, or simply to steal trapped particles and plankton from the tentacles.[7]

Occasionally, sea apples use their defense mechanisms in response to harassment. The release of their toxin can poison other aquarium inhabitants,[5][7] and is one of the reasons they are not commonly seen in aquariums.[8]

This software allows you to keep track of your aquarium like a scientist, with no degree needed. The program is built for easy data entry and supports multiple fresh and saltwater aquariums. It is a complete aquarium tracking software package for Windows to help you maintain healthy aquarium conditions.

It encourages you to record the price of all your aquarium purchases. The program then calculates the total worth of your aquarium and breaks it down into several different categories. Detailed expense reports are generated in HTML format.

Aquarium Lab is a software to manage the aquarium, monitor pH, temperature, calcium and other species of fish in aquariums of you. Aquarium Lab will help users track and maintain the conditions suitable for a fish tank healthy by monitoring the water quality parameters are different and create a report.

A fascinating and hardy filter feeding sea cucumber. They perch on rocks and use tentacles to catch debris in the water column to feed. A beautiful ornamental invertebrate. Requires a stable healthy aquarium. Will benefit from target feeding with coral food or anything similar.

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The body of the Emperor Sea Apple, is light to dark purple to blue, and it has yellow feet. The tentacles are violet with yellow tips. This a beautiful species that will add a new dimension of colour to the reef aquarium. It prefers an established reef aquarium with room to move about, and large amounts of live rock from which it receives a majority of its food.

Once it finds a favorable location, usually in a high current area, the Sea Apple will generally stay there. Protect all intakes on pumps and power heads, to eliminate any possibility of being sucked in. It is very sensitive to high levels of copper-based medications. Sudden changes in pH or salinity can cause it to shed its oral tentacles. Do not house these Sea Apples in an aquarium that contains any fish that may pick on its tentacles. Generally, any fish that is prone to pick on feather dusters, will pick on the tentacles of the Emperor Sea Apple. These fish include; Butterflyfish, Large Angels, and any species that is listed not safe with invertebrates.

When feeding, it will extend its oral tentacles into the current to filter out food. As the food is trapped, it will then draw its entire tentacle into its mouth. In the aquarium, it will need to be fed a diet of phytoplankton - frozen, liquid, or dried - on a daily basis.

Whether you want a new addition to an already thriving freshwater aquarium or you're in search of a new, low-maintenance pet, an apple snail is a great choice. A species of aquatic snail that encompasses the mystery snail, the Golden Inca snail, and many others, the apple snail is an easy addition to any tank. By setting up a freshwater tank, feeding your snails, and giving them plenty of calcium, you can happily take care of some apple snails.

Pseudocolochirus axiologusis commonly referred to as Australian Sea Apple. Difficulty in the aquarium: Experts only! Very hard to keep. A aquarium size of at least 2000 Liter is recommended. Toxicity: Toxic.

Pseudocolochirus axiologus is (very) poisonous and the poison can kill you under circumstances!!!

If you want to keep Pseudocolochirus axiologus, inform yourself about the poison and its effects before buying. Keep a note with the telephone number of the poison emergency call and all necessary information about the animal next to your aquarium so that you can be helped quickly in an emergency.

The telephone numbers of the poison emergency call can be found here:

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Overview Worldwide: eapcct.org


This message appears for poisonous, very poisonous and also animals whose poison can kill you immediately. Every human reacts differently to poisons. Please therefore weigh the risk for yourself AND your environment very carefully, and never act lightly! be457b7860

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