General discussion about all things Koi
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Roto Concept Gravity Shower
hi everyone,
i konw these have been mentioned in the past, but am quite intrigued by these…..
does anyone ou there own one and use it on thier pond??? does it work?? pro’s and cons……
for me it is a toss up between this and a nexus 210……. just want someones personal review….
also…… is this too big for a pond approx 2500 gallons???
Thanks in advance.
Fishy_Matt
I hate to advocate drugs, alcohol, violence, or insanity to anyone, but they’ve always worked for me.
- Fishy_Matt
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Re: Roto Concept Gravity Shower
can never be to big m8 .. i want 1 and will prob get 1 later in the yr when i do a bit around the pond dave at coastal is running em and is very happy with the results give him a ring
- doitsu chag
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Re: Roto Concept Gravity Shower
Got these pics sent to me from the makers when i asked if there where any being used or trialed on ponds a while back.
001 Koi Pond.jpg
002 Koi Pond.jpg
003 Koi Pond.jpg
004 Koi Pond.jpg
4C4358849DEB43D3986DFE0B9B282A30.jpg
005 Koi Pond.jpg
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My pond build start-of-pond-mrk3-t125070.html
http://www.fmb.org.uk/welcome
- chabev10
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Re: Roto Concept Gravity Shower
thanks for the replies…..
i actually saw one of these filters set up and running at the weekend….. but it had only been running for about 4 days…..
just wondering how effective it is in comparison to the nexus 210….
anyone?????
I hate to advocate drugs, alcohol, violence, or insanity to anyone, but they’ve always worked for me.
- Fishy_Matt
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Re: Roto Concept Gravity Shower
hi, as the crystal bio is excellent in my shower filter and seems alot quicker to mature,it also depletes nitrate, its cheaper as you dont have to buy more media or lid and you dont need extra air. 15 secs to clean. cant wait to buy a couple.
if dave at coastal can take out a 210 and replace with the rotto says alot in my book
Mark my pond build http://s747.photobucket.com/home/mark6465/index new filtration http://www.youtube.com/watch?v=ruGO81yD … re=related
http://www.youtube.com/watch?v=ppI1Zw_eGVg
- mark6465
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Re: Roto Concept Gravity Shower
I don’t think you’d be disappointed. One of these will easily filter 5000 gallons highly stocked. I have seen one of these filtering a dealers tank with 300 6-8″ fish in. They haven’t had a reading! As for it being too big for you, I don’t think you can over filter. I am currently planning my pond which will be 9-10000 gl. I will run two of these as the main filtration. I really am that impressed.
- simon sanke
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Re: Roto Concept Gravity Shower
hi, i wouldn’t always take manufactured claims.i think they all over estimate there claims.
take the nexus 300.rated for a 7500 gallon pond,fine if you have 2 fish in it.
this size pond could hold a lot of big fish.but there bio side only has 100 ltrs of k1.
they claim this can cope with 225 grams of food a day. a pond of 7500 gallons with a lot of fish in it,are going to need more than 225 grams of food.through experience i don’t reckon 100ltrs of k1 can cope with 225 grams of food a day,
i think you should take at least 30% off manufacturers claims.
having said all this the roto concept shower looks a good add on.
- sam51
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Re: Roto Concept Gravity Shower
sam51 wrote:hi, i wouldn’t always take manufactured claims.i think they all over estimate there claims.
take the nexus 300.rated for a 7500 gallon pond,fine if you have 2 fish in it.
this size pond could hold a lot of big fish.but there bio side only has 100 ltrs of k1.
they claim this can cope with 225 grams of food a day. a pond of 7500 gallons with a lot of fish in it,are going to need more than 225 grams of food.through experience i don’t reckon 100ltrs of k1 can cope with 225 grams of food a day,
i think you should take at least 30% off manufacturers claims.
having said all this the roto concept shower looks a good add on.
hi sam, the max bio for 30-310 is 300ltrs, they supply it with 100 ltrs
Mark my pond build http://s747.photobucket.com/home/mark6465/index new filtration http://www.youtube.com/watch?v=ruGO81yD … re=related
http://www.youtube.com/watch?v=ppI1Zw_eGVg
- mark6465
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Re: Roto Concept Gravity Shower
mark6465 wrote:
sam51 wrote:hi, i wouldn’t always take manufactured claims.i think they all over estimate there claims.
take the nexus 300.rated for a 7500 gallon pond,fine if you have 2 fish in it.
this size pond could hold a lot of big fish.but there bio side only has 100 ltrs of k1.
they claim this can cope with 225 grams of food a day. a pond of 7500 gallons with a lot of fish in it,are going to need more than 225 grams of food.through experience i don’t reckon 100ltrs of k1 can cope with 225 grams of food a day,
i think you should take at least 30% off manufacturers claims.
having said all this the roto concept shower looks a good add on.
hi sam, the max bio for 30-310 is 300ltrs, they supply it with 100 ltrs.
QUOTE
ok,the specifications on there site,state suitable for 7500 gallon pond,100ltrs k1.
the price about £1300.00.so you have to buy another 200ltrs of k1,for a pond of that size.
a bit misleading i think.
- sam51
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Re: Roto Concept Gravity Shower
No sam, your reading it all wrong.
A 7500gal pond has nothing to do with the amount of bio media is required, the fish size and food ratio does.
A 300 comes with 45litres static, according to ea and pod owners this is OK for around 180 grams of food per day. Then theirs 100ltrs in the bio, so add 500 grams there and you can feed 680grams per day easily. I have around this in a 200 so I know it’s capable alright with 26 sansai lol. Then you can’t work this out but factor in the pond walls, pipework etc where biofilm will be and you could push it a little BEFORE spending out on more k1.
Anyway back to the original question, I think this filter is superb as far as no head losses like a sieve, reoxygenates for free, and a massize bio capacity including nitrates. The only thing that would stop me buying 1 without real world testaments is this vortex as mechanical only. Do the fines settle at the max flow rate????????? I don’t think they will, so do they clog up the media for bugs to eat or do they turn sour??? So people then may add a bead on just like a nexus or dangle brushes around the inlets which are a pain to hose down, but I don’t know so cannot say it won’t work. Something you need to be told or seen yourself in an outside pond after a good summer with normal stocking rates, BW treatments etc. If someone who owns 1 can give it this testament, I might just sell the nexus lol.
My pond build pics pond-mk3-final-build-t397392.html
- Carl
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