Koralia # 4 not as good as #3

[jallen100]

I love my #4 other than the magnet being backwards.

[Ricky1066]

Great customer service at Dr fosters Called up and they are shipping me out a new ph today and a return tag for the other one.

[dsn112]

I run 40x turnover, 20 is a little low, but it all depends on what you want to keep. Also the more flow, the less chance for detritus to build up.

2's are also said to be the worst model, Id do 3's for a 55.

[seanb1]

the washer nipple points up.

[SteveNMegz]

Originally posted by A.VOID
What do people recommend for a 55?

I saw one poster saying they're getting 2 x 4's for a 55. I thought that sounded like too much.

A pair of 2's (600goh) = 1200 gph or 20x+ water overturn. That sounds right to me/

the 2's alone in a 55G will do nothing, we had 2 in our 65G for a while and was dissappointed ended up adding 2 more #4's to it, now we have about 60X turnover

[SteveNMegz]

Originally posted by seanndenise1
the washer nipple points up.

Thanks for the help!

does everyone elses #4's vibrate around, we can only tell if we look right at them, but both of them definatly move

[rioshilo]

My #4 doesn't oscillate any more then my #3, but both appear to have no movement at all unless you look really close... I only decided to look very closely because you asked I also agree with what was stated earlier, in that the #3 seems to have a more directed pattern while the #4 is more spread out...

[Aquarist007]

Originally posted by rioshilo
My #4 doesn't oscillate any more then my #3, but both appear to have no movement at all unless you look really close... I only decided to look very closely because you asked I also agree with what was stated earlier, in that the #3 seems to have a more directed pattern while the #4 is more spread out...

the focal point for all the korilias is the centre of the domed head--it draws water in from the sides.
So if you put your hand at the focal point a little dist away you are not going to notice any different. The difference will be the distance and the width of the circular flow the farther and farther you get away from that point.
Put your hand a foot away from a 3 and a 4 and you will notice the difference.

this is the nature of turbulant flow over laminar or straight flow that you get from a maxijet and what makes this pumps so effective--they cover a lot of distance

I guess it is like dropping a penny in the water and watching the circular rings of flow away from it--now drop a rock the same way and you will get the rings spreading out farther and farther

[rioshilo]

I gotcha... I was just saying that when I put my hand out there, say at the 1 ft mark the #3 seems to be still pretty concentrated whereas the #4 has spread out to a 6-8" ring at that point...

[agreeive?fish]

I got my #4 today..when i feed flakes went every where and the fish seem to like ridding the flow..my sailfin tang will swim upto it turn sideways and ride the current..over and over

[Aquarist007]

Originally posted by rioshilo
I gotcha... I was just saying that when I put my hand out there, say at the 1 ft mark the #3 seems to be still pretty concentrated whereas the #4 has spread out to a 6-8" ring at that point...

right and that's because of its extra power

[Aquarist007]

Originally posted by agreeive?fish
I got my #4 today..when i feed flakes went every where and the fish seem to like ridding the flow..my sailfin tang will swim upto it turn sideways and ride the current..over and over

yeah that's another bonus--they really disperse the food some some of the other smaller fish can get some.

I have three fours in my tank--that's why I don't feel quilty having three tangs in there--there like a hamster in an exercise wheel

the float down and swim back against the current all day

[chernandez]

I was planning on 2 x #3 for a 90 gal tank will that be enough or do I need to to the 4's

[Ricky1066]

I agree captn The 4 does not seem to go as far across the tank but it covers more of the tank

[HABS#1]

We use a K1 and K2 and a nano now in our 31 mind you I have transplanted the K1 to the 75 for circulations while I am seeding some baserock nad curing some liverock. They will all be going into the 75 along with a #4 and I am thinking I will move the nano to the refugium. So our 75 will ber pushing 2200GPH plus whatever I get the flow set at from my mag 7 return from the refugium.

[Ricky1066]

Captn tried to pm Mailbox full again

[JWeller]

I've had a K4 in my 55 gallon for a couple of weeks now and I love it. It replaced one aquaclear 30 that came with the tank.
The flow is tremendous in there to the point it bothered a few of my corals. I still have another AC 30 in there for directional flow as well. Seems to be working pretty well.

I did notice that if you don't get the front dome on the K4 on there just right, it will rattle a bit. I just adjusted it and the rattling stopped. It's running quietly now.

[Aquarist007]

Originally posted by chernandez
I was planning on 2 x #3 for a 90 gal tank will that be enough or do I need to to the 4's

if you have predominately lps corals then you need a flow rate in your tank between1800 and 3600 gph
two 4's would give you 2400 gph and with your return that would be just right

#1 400gph
#2 600 gph
#3 800 gph
#4 1200 gph

[Aquarist007]

Originally posted by Ricky1066
Captn tried to pm Mailbox full again

yeah I did that for a reason--all bills and no checs

I'll clean it out now

[Aquarist007]

Originally posted by HABS#1
We use a K1 and K2 and a nano now in our 31 mind you I have transplanted the K1 to the 75 for circulations while I am seeding some baserock nad curing some liverock. They will all be going into the 75 along with a #4 and I am thinking I will move the nano to the refugium. So our 75 will ber pushing 2200GPH plus whatever I get the flow set at from my mag 7 return from the refugium.

if you need more base rock go to Mops.ca----I picked 40 lbs up of it for 50 lbs and it is great stuff--really porous.

[shakanoi]

Im planning on 2 K4s for my 90g to go along with the 1200gph return. I wanted to try some sps.

[Aquarist007]

I have linked this thread to this one in order for more access to information on other threads:
http://reefcentral.com/forums/showt...hreadid=1359857

[inachu]

The coolest hip trendy LFS in my area all swear on Korilas.
They also mentioned that a #4 for a 55 sized tank is a bit too strong.
I got so tired of these other powerheads dying on me and clogging up. I try to imagine the cavitation a Korila can do if hooked up on a skimmer! Ha! no snail can clog Korilas up.

[shaggy14]

i have a little over 2000gph flow in my 50. and i like the 4, it just seems to always leave me with a bare spot in the sand bed.

[Aquarist007]

Originally posted by shaggy420
i have a little over 2000gph flow in my 50. and i like the 4, it just seems to always leave me with a bare spot in the sand bed.

try placing it low in the tank but facing upwards