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Our fish are dying.

This is a discussion on Our fish are dying. within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> well the bio wheel was probably cycling the tank since you din't clean it out.. filters are always cleaned with old tank water to ...

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Old 09-21-2010, 02:04 PM   #11
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well the bio wheel was probably cycling the tank since you din't clean it out.. filters are always cleaned with old tank water to save the beneficial bacteria that's in there.they are the ones that change ammonia to ammonium and nitrite to nitrate and make the water safe for fish. but since your stock list is not in a good state the stress could have caused the fish to have shorter lives.
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Old 09-21-2010, 02:14 PM   #12
The filters we use are disposable. You run water over them and install them in the tank. After you use them a week or two, you throw them away and get another one. I will start using tank water instead of tap water. I didn't realize that was important.

Should I rinse the bio wheel? If so, how often? I read somewhere not to bother the bio wheel because of the beneficial bacteria.
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Old 09-21-2010, 02:26 PM   #13
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bio wheels only need to be taken out to rinse if they get stuck with muck and stuff.. why dont you get a permanent filter instead of the disposable ones and rinse the filter sponge once a week??

these a lot of chemicals in the tap water and that's what kills of the bacteria
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Old 09-21-2010, 02:40 PM   #14
Is there a permanent filter available for an Eclipse 12? I am willing to look into it, but the only filters I have ever seen are the disposable ones.

thank you
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Old 09-21-2010, 02:50 PM   #15
eclispe systems are picky about the filter they use if im not mistaken, their filter media is also in one entire packaged deal so i dont think u can just easily substitute it for other types. Their biowheel is what keeps the unit cycled so the media can be changed. I used to have one of their HO filters and I changed the cartridge once a month without any ammonia and nitrite spikes. one option you could try is to get strtess zyme, stability or another bacteria culture to add to the tank to help the cycling process.

The best way to control algae is with live plants. If you do not want to use live plants you will need to change the water more frequently. to reduce the amount of minerals algae use. Also excessive algae growth may be due to long light exposures. How many hours a day is your tank lit? The recommended amount of light exposure is around 10 hrs a day, cut back for less growth, increase for plants if they need it. Lastly you could get Oto catfish once your tank is matured. a pair would do ok although most would recommend 3 or more. They will graze on the algae and keep it controlled.
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Old 09-21-2010, 02:51 PM   #16
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i read up on the tank review and it said nothing on changing the filters all the time.
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Old 09-21-2010, 03:00 PM   #17
the box it comes in, at least for the HOB, told me that the carbon expires in around 30 days and to change it to keep the water crystal clear. You cant change the carbon for these filters without the entire cartridge being changed so that could be it?
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Old 09-21-2010, 03:00 PM   #18
The information about changing the filter cartridge is in the owner's manual. I just re-read it to make sure I understand it.

The directions say every 2-4 weeks so I guess I could go longer between filter changes. It just always looks so dirty.

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Old 09-21-2010, 03:08 PM   #19
the brown goo on the filter is a combination detritus and bacteria, for the eclispe systems, if its not changed it will eventually just clog. i looked up the cartridge and its the same as the HOB ones except longer. If i didnt change them 2 months in, the water eventually just stopped flowing through them fast enough and the bio wheel stopped and the extra water went down the side of my filter.

THUS, play attention to how long it takes for the filter to clog and use that as your max life of the filter. Even with weekly rinsing, the filter will clog very quickly for this brand. This is why the biowheel is super important for these units. i believe its designed this way because the filter media is intended mainly for mechanical and chemical filtration whereas the wheel is for bio. The bio is required, but one can actually do without the mechanical or chemical filtration so the fitler is designed to give you options for what types of filtration to use.
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Old 09-21-2010, 03:09 PM   #20
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I will leave the filter issue to those that are familiar with that particular type, since I am not.

Algae is a plant, and when light is present so will be algae. It feeds off the nutrients that occur in a healthy aquarium; one with live plants rarely has algae because the higher plants use the nutrients and light before algae has the opportunity. But without plants, you will (or should) see algae. If there are no live plants, I would leave the algae to handle things naturally.

The algae-destroying chemicals should not be used in a tank with fish. Any chemical is going to cause some degree of stress on the fish, varying with the species and chemical involved. Corydoras for instance are very highly susceptible to any substance added to the water. In general terms, the less chemical stuff added to tanks the better. We use water conditioners because we need to in order to protect the fish from the harmful effects of chlorine and chloramine in tap water. But that's it.

As someone mentioned, Corydoras are shoaling fish that must be kept in a group; three is the minimum number. If you really like and want this fish, consider acquiring a couple more. I say if you really like and want, because in small tanks each fish is adding significantly to the bio-load, and you don't want to be adding this or that fish unless you really want them. And that brings me to the otos someone mentioned; I would not add these just to handle algae, again they need a group (3 will work) but that is adding to the bio-load too. Algae can be controlled by limiting the light, which is better than adding fish that will cause other issues.

You probably do have low nitrates, which is OK; without live plants it would be almost impossible not to have nitrates although weekly water changes, few fish, minimal feeding will not contribute a lot to nitrate buildup.

Hope this helps a bit. And Suzanne, welcome to Tropical Fish Keeping forum. Glad you found us. There is a great deal of collective knowledge among our members so you are in good hands.

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