rabbut
I don't bite, all that often...
Not the most constructive comment rooster...We're looking to avoid a flame war, not caurse one
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Not the most constructive comment rooster...We're looking to avoid a flame war, not caurse one
Sumps give fantastic biological filtration but most are pretty poor at mechanical filtration, i have over 50 kilos of bio media in the sump on my big tank but it is very poor at catching particals out of the water and i am going to be adding a big Eheim bucket to it soon for the mechanical filtering.
Rooster
Fish Herder
Not the most constructive comment rooster...We're looking to avoid a flame war, not caurse one
This is different.... its called humour !
adamgreen240
Fish Herder
im with t1karmann on this one , the pro 3s are much better hence the price, the media is also beter with the eheim, with the tetratec you get plastic bio media, with the 2080 you get proper ceramic media.
the price reflects the quality
the price reflects the quality
rabbut
I don't bite, all that often...
Not the most constructive comment rooster...We're looking to avoid a flame war, not caurse one
This is different.... its called humour !
My bad
vinylman
Essentially Humanoid
im with t1karmann on this one , the pro 3s are much better hence the price, the media is also beter with the eheim, with the tetratec you get plastic bio media, with the 2080 you get proper ceramic media.
the price reflects the quality
Actually, with the Tetratecs you get plastic balls, sponges AND ceramic media.
Nope, you need to add a Fluval Fx5! That should finish your filtration turnover rate
. I'll send you a modified Fx5 that can hold 15L of bio media and 3 1" thick spunges with a top surface area of 108" and a increase filter output how bout that? A lot more than a Ehiem could hold! All for a price to which you can afford ofcourse If you have THAT MUCH media capacity than no you don't need as much of a turn over rate but if you are dealing with lesser amounts of media than you need a higher turn over rate. The turn over rate is also not really for "filtration" but for circulation as well.
hahaBastables
Fish Fanatic
I know what I have used. If you don't belive me, fair enough, I'm not going to make you, neither am I going to argue the point with you....
The tearm stones and glass houses springs to mind.... The style of your posting often makes me wonder the same....
Back on topic now
I based my assumption on mechanical filtering capacity on the maximum size tank each filer is rated for, re EX1200 and 2080.
Near same flow rate, but the 2080 being rated for a tank twice the size. I don't dispute that the 2080 has the mechanical media there, but it is useless if the dirt doesn't find its way into the filter. To find its way into the filterm the dirt needs to be in suspension, and that requires flow in the display tank. With less than 1 time an hour turn-over rate in the 2080's maximum tank rateing, I dooubt flow would be suffic to hold dirt in suspension long enough to make it into the filter....mebe this is the caurse of the reduced cleaning interals???
I doubt that there is no flow reduction in the Ehiems when the media is added, regardless of how much torque the motor has. Is the rating realy for a filter which does not contain media? It is interesting to note that none of your manufactures links are working, so at this point I can't realy coment on them. Please fix them
Is reduced cleaning intervals always a good thing. Suppose you have fish tank don't like disolved organics? Surely not having a clean for a longer length of time will lead to a build-up of these?
No to play devils advocate againRe £10-15 production costs. I have already stated that I cannot verify the cost of producing any filter, as these are the types of things that businesses keep to themselves. Perhapse you can disprove me, but finding a source indicating production cost
I doubt you will be able to, so we are going to need to make a reasonable guess as to how the costs stack up. I think my estimate is realistic considering the factors. Isn't it interesting that people always quote me on the lower of my estimates, rather than the full range that I give
Eagerly awaiting your reply
Rabbut
Piffle.
Actul flow of teta 1200 with hoses and media is 600 l/h.
eheim 2217 with media and hoses is 765 l/h
eheim 2080 with media and hoses is 1200 l/h
eheim 2215 with media and hoses is 515 l/h
tested my own 2215 and had my mates at the fish shop help test the tetra and the eheim 2080/2217. There are independent test flows in the 2080 vs FX 5 comparison (identical). and cichlid forums has some one testing the tetra 1200 (identical flow rate). I had the pet shop run flow rate tests in a identical manner to the eheim classic tests on planted tank forum.
Tetra drops 50% of advertised flow rate in operation eheim's drop 30%. For comparison JBL state their filter design policy is to have "healthy" water while having only 1 times to 1.5 times per hour water content cycle. (I have brought a new JBL250 for my 200 liter tank and am quite enjoying it).
You get what you pay for.... And comparison wise the now chinese manufactured 2217 is as cheap, does more liters per, hr and holds more media. Eheim has a name for a reason, they build and sell good kit. That tetra builds a smaller weaker canister (vs 2217) but has baskets and self priming is a case of two steps forward one step back.
You stated prior that the mechanical filtering had to do with media, they're all identical except that the 2217 and 2080 have 6 litres and 13.5 litres vurses tetra's 4 litres.
Dissolved organics..... Please explain how something that is removed in the rest of the world through water changes makes a case for having a bit of equipment that requires smaller periods before forcing you to carry out maintenance is a plus.
10pounds the lower or so called 15 pounds higher figure.... in the West there is this idea called positivism articulated by Karl Popper. Simply in order to make a statement that becomes a fact that one must prove it. His example was that one cannot make a statement that all swan's are white as one would have to prove that every swan in the world in the past and present is white. We use this principle in science, one one forms a new theory one must prove it not merely make a hypothesis and ask everyone else to disprove it. You have given figures pulled from your rear about manufacturing costs please provide actual break downs of the manufacturing costs in Germany of all eheim canisters.
British/commonwealth law follows a similar injunction: guilt must be proved beyond reasonable doubt by the Crown. The defense does not have to prove that "they" are not guilty. In western society one does not have to prove a negative. that is not where we have been going with scientific thought.
Bastables
Fish Fanatic
or he could buy a 2262 and still have a filter under warranty that has similar flow rate (3400 l/h 3,6m del head) and 18 liters of media. Chap who ran the tests noted that biological processing is slower in the 2262 compared to the 2260 the only difference in the filters being that the 2262 has a higher flow rate (different pump). It seems that there is a point (all else being equal) that higher circulation impedes biological processing.
Nope, you need to add a Fluval Fx5! That should finish your filtration turnover rate
If you have THAT MUCH media capacity than no you don't need as much of a turn over rate but if you are dealing with lesser amounts of media than you need a higher turn over rate. The turn over rate is also not really for "filtration" but for circulation as well.
Bastables
Fish Fanatic
Not quite comparable the ceramic media in tetra (the CR rings) are for mechanical filtration and are not comparable to biological media sinctred glass such as eheim substrate pro or JBL's sinto mech or micro mech. It's more in line with the clay pipes that eheim, Hagen, JBL and aquaone use to mechanicaly clean and slow down/redirect water so the bio media comes in contact with more of the "dirty" water.im with t1karmann on this one , the pro 3s are much better hence the price, the media is also beter with the eheim, with the tetratec you get plastic bio media, with the 2080 you get proper ceramic media.
the price reflects the quality
Actually, with the Tetratecs you get plastic balls, sponges AND ceramic media.
slakey
Fishaholic
What would be best external filter for my new Rio300?
I've looked at the Fluval 405
and the
Tetratec Ex1200
haven't looked at any others, but I'm open to suggestions. I would like it to be hidden in the cabinet too.
*sorry for sort of topic stealing*
I've looked at the Fluval 405
and the
Tetratec Ex1200
haven't looked at any others, but I'm open to suggestions. I would like it to be hidden in the cabinet too.
*sorry for sort of topic stealing*
slakey
Fishaholic
Fluval 405 or Eheim 2217?
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