Canister Filter? - Page 3 - Tropical Fish Keeping - Aquarium fish care and resources
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post #21 of 26 Old 07-14-2011, 08:59 PM
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In all my thought process of the filter, I totally over looked the idea that bacteria would colonize it. My mind was on plants and substrate doing most of the work. Excellent point that you can't "gut load" bacteria to have it on hand for when you need it. I read your article on bacteria it helped to understand their roles in the aquarium.

I have researched enough on the profiles for the fish I wish to keep that I think I know the best size and fit for the aquarium. I'm going to make sure the filter I want has a variable flow rate so that I can make sure to replicate their natural environment.

Maybe I was caught up in the "Tim Taylor" more power thoughts for filters. Going to spend a bit of time researching around to see what the eheim 2213 filter can hold media wise and what is best for minimal cleaning.

Thank you for your thoughts as always.
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post #22 of 26 Old 07-18-2011, 05:50 PM Thread Starter
Post Eheim Support Reply

I was looking into buying a canister filter but don't know which one is right for me. My goal is to buy a canister filter that would work for both my current 27gal cube tank and then later switch it to a 60gal when i have the room. One filter that peaked my interest was the Eheim Pro 3E 2074 but am concerned about the 90gph flow rate. Would lowering the flow rate on the unit allow me to use it on my 27gal then later increase the flow for my 60gal later on. I am open to any recommendations, I just want to be able to use the same filter for a 27gal on a 60gal late on.

Thanks, MetalArm3

Eheim Support:

Dear MetalArm3

The EHEIM model 2074 has been manufactured for aquariums up to 90 gallons.* Since this is an electronic filter, the flow can be controlled precisely using the EHEIM interface or the touch pad.* Note that the minimum flow of this filter is 90 GPH,* this flow will not be too much for your 27 gallon aquarium.

So what do you guys think? Do you agree with them? Chime in!

P.S. I hope I don't get in trouble for posting this, the email said it's only intended to the addressee :p
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post #23 of 26 Old 07-18-2011, 06:02 PM
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Well if the lowest flow is 90GPH, that is a turnover rate of 3x the volume of your tank. In thinking with what Byron and others have posted that fast and furious is not always best for the fish. What fish do you have/will you have? Natural habitat is slow streams or rivers? I'm almost sold on the Eheim 2213.

Part of me thinks that the 2215 would be better if I did get a 75G tank. But the cost of those is higher than I imagined overall and might just not get one.
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post #24 of 26 Old 07-18-2011, 11:09 PM Thread Starter
Well, I currently have a 27gal cube tank withe tropical fish (Guppies, Platties, Tetra and Cories). However I am looking at canisters as a future investment. After these fish die off (hopefully that will be several years) I want to get 3 goldfish in there possibly (overstocked, but hoping a good filter can compensate for large bioload). Then 5 years down the line hopefully run it on a 60 or 70 gallon tank. I had a goldfish 10 years ago, actual a feeder goldfish (was 5 cents lol) and it lived about 8 years. It started out a around a half inch and ended around 7 or 8 inches while also changes colors from black to white to finally an orange (sorry for my rambling). So since I'm not in a rush, keep me updated on what you decide as I'm sure it will influence my decisions.
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post #25 of 26 Old 07-19-2011, 10:54 AM
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A comment or two on the response from Eheim. First, they are being very general and cannot be factoring in the aquascape and fish species. Of course any filter rated as "up to 90g" will filter a 27g tank, that is not the issue. The fish determine the filter, or should if we want to provide them with the best.

I have a Magnum canister that I bought for my 33g way back when, my first canister. It is far too powerful for that size tank. I now have an Eheim sponge filter [they don't make these any more, pity, because it is a superb filter, a simple sponge inside a small canister with a little motor, hangs in the corner of the tank] on this tank, and the Magnum is in a box as my backup spare filter should one of the other filters ever give out.

If there are going to be fish in a tank for 5 years they deserve appropriate water flow or they won't last 5 years.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #26 of 26 Old 07-20-2011, 05:23 PM Thread Starter
Couldn't agree more Byron! I emailed them again abot flow rate and here's what they said:

I am setting up a 27 gallon cube tank that will be stocked with 2-3 Fancy Goldfish. I was looking at the Eheim Pro 3E 2074 because I am going to be upgrading to a larger tank (60gal) in a couple of years and am hoping to find something compatible with both. My concern is the flow rate may be to strong in my 27gal tank. Can the flow be reduced to very minimum surface agitation because goldfish need calm water. I am also open to other filter recommendations. Also, what is your return policy? If I buy a canister filter and find it's too strong for my tank, can it be returned on that cause alone? Thanks, MetalArm3

I would recommend an Eheim Liberty power filter for your 27gal tank. Model 150 or 200. The flow is not overpowering, its very easy to use and clean. As far as the return policy you would need to verify that with the particular retailer that you purchase from.

My solution is keep the penguin 350 since it's new (only a month old) and then when the time comes to stock it with fancy goldfish I might buy a small Eheim canister (2213?) too run along with Biowheel if parameters become inconsistent. How's does that sound? Or is it bad to run two different types on filters?

BTW what are people views in the Eheim liberty models? They look cheap....

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