Koralia reviews please

[sherm71tank]

Isn't a ground in a pump thats sealed kinda weird? I mean, where do they put the end of the ground at? Inside the epoxy at a random point?

[bergzy]

Originally posted by mile sq. reefer
More reviews K-4's. Not looking for a Koralia v. Tunze debate.

i think it is important to have a review of the product in question and have it in COMPARISON to a similar product. without comparison, it would not be fully objective.

how would you know if the koralia had a wide flow? how would you know that a prop is a great thing to have? would would you know if a lot of people consider the koralia's somewhat large? and the list can go on and on.

these questions are easily answered because there is a similar product to compare what is liked and not liked about each other.

the koralia uses 13 watts. is this a lot? is this great in electrical efficiency? who knows unless you COMPARE similar products. compare a koralia to a seio? lots more flow with a lot less electricity. see? how would you know that the koralia was better than the seio in these aspects? compare a stock koralia 4 to a modded nano...the nano uses less electricity with the same amount of flow. how is this statement concluded? yes, with 'comparisons'.

note how people are reporting that because of the wide flow, the koralia is hard to place near the sand bed yet this is not much of a problem with a nano.

we are so lucky to have so many choices. it allows us to choose what is best for our situation.

[Entropy]

I am not sure. I know the Seios are grounded. Not sure about the Tunze. I am not sure if it because of the low power draw or what.

[bergzy]

Originally posted by Entropy
Did I mention the orange prop?

Is anyone concerned that they are not grounded?

hehehe...

yeah, the orange prop is hilarious!

but mine are yellow wince switching them out with the octura's!

not a whole lot better i think!

grounded? i thought we were the ground!!!!!

[charlesjordanjr]

I have 3 #4's in my 90. I think they are OK. not great. The flow basically comes out of the powerheads in 2 directions. I was hoping for a wide flow, but these don't really have that. I have an sps coral about 3" in front of the powerhead. Because the flow is going in 2 directions, not on big wide flow, the coral doesn't get bothered at all by the placement. I thought it would have been just my powerheads, but I have seen at least a dozen others in action and they all exhibit the same pattern. So, I am a little disappointed in that. Definitely do not expect to have them on opposite sides of the tank, pointing at each other, and crash into each other's flow.

[rogergolf66]

well I like the dispersment of water in my #4's.

Roger

[afelder]

I like my number 4's a lot

[alky69]

took mine out after getting shocked one too many times.. piece of garbage, the flow comes out the sides more than the front.. and these r the #4s

[bergzy]

Originally posted by charlesjordanjr
I have 3 #4's in my 90. I think they are OK. not great. The flow basically comes out of the powerheads in 2 directions. I was hoping for a wide flow, but these don't really have that. I have an sps coral about 3" in front of the powerhead. Because the flow is going in 2 directions, not on big wide flow, the coral doesn't get bothered at all by the placement. I thought it would have been just my powerheads, but I have seen at least a dozen others in action and they all exhibit the same pattern. So, I am a little disappointed in that. Definitely do not expect to have them on opposite sides of the tank, pointing at each other, and crash into each other's flow.

this is a pretty easy fix. get a piece of 1/2" to 1" length of 2" abs (it's black), drill two small holes near the one end and zip tie it to the front grill of the koralia. this will focus the flow more like a tunze.

[Scissorhand]

Originally posted by bergzy
this is a pretty easy fix. get a piece of 1/2" to 1" length of 2" abs (it's black), drill two small holes near the one end and zip tie it to the front grill of the koralia. this will focus the flow more like a tunze.

that IS a neat idea.

Agreed that Koralia 4's flow is wide spread but still isn't strong enough.

Wouldn't reach half-way past a 4 foot tank.

[Europa13]

Choosing a Tunze nano stream 6025 over a K4 is pretty much a no-brainer.

The Tunze is a lot smaller (Tennis ball size compared to Coke can size)
With the simple mod, The Tunze will be equal in output (1200 gph)
Most importantly, TUNZE will stand behind their product. Hydor will not.
Tunze guarantees the entire pump, Hydor only guarantees the one part that will never break. Tunzes customer service is as good as it gets.

IMO, saving $3.00 to get a Hydor is not worth it.

[OliverM3]

Any in tank pics of the Koralia's?

Figures I just ordered two and didn't even think to check the size.
The dimensions seem huge for the output of these pumps.

I should have just bit the bullet and went with the Ecotech Vortech.
There's one in use at my LFS and it's amazing and a nice size.

Oh well could always use them in my water change bin

[mile sq. reefer]

bergzy, you dont need to compare them to the tunze to say you like them for x,y,z. reasons. If you think they are quality from your exp. from using them then thats sufficient.

[Entropy]

Originally posted by Europa13
Most importantly, TUNZE will stand behind their product. Hydor will not.

Does this include after you tear the pump apart and dremel off the shroud to get the increase in flow? Some how I don't think Tunze is going to repair/replace a modded pump, but if they will that seems to make the Tunze very attractive.

[Europa13]

Originally posted by Entropy
Does this include after you tear the pump apart and dremel off the shroud to get the increase in flow? Some how I don't think Tunze is going to repair/replace a modded pump, but if they will that seems to make the Tunze very attractive.

The mod includes simply removing the plastic that restricts flow from the front plastic cover piece. If you don't do the mod, it is very doubtful that that piece will ever break. If you do the mod, I guess it is possible that you could break it if your not careful. Their customer service is so great that I really think they would replace the front cover even if it was your fault. But even if they didn't, that piece would be very cheap. What I was getting at is the pump its self. That is were most of the cost is involved and they back it up 100%. Hydor will not. Also, if you happen to have read any bad reviews on the Tunzes, it is because they released it too soon due to demand. The problem has been fixed and if you got one of the early models, they would replace it.

[bergzy]

Originally posted by Entropy
Does this include after you tear the pump apart and dremel off the shroud to get the increase in flow? Some how I don't think Tunze is going to repair/replace a modded pump, but if they will that seems to make the Tunze very attractive.

tunze customer service is the best i have ever encountered. i have had a couple of tunze things not work ideally, informed roger, sent them to him and was returned in great working order.

now...

the modded nano situation is a bit tricky. the motor block, the prop and the shroud are three separate things. i had one of the first nano 6025's and did not know how they were suppose to work or look working...i'll explain more...

the 6025, as some of you have mentioned, has a plastic shroud that restricts flow. removing that with a dremel opens the flow right up...right up and how!

with the first generation 6025's, the prop wobbled in the motor block. this decreases flow because of decreased full operational capacity. i did not notice the 'wobble' until i purchased a second 6025 later on and noticed that the prop did not wobble in the motor block.

i thought it wobbled because i cut the shroud away...so i ordered another 6025 shroud thinking it needed the plastic tube to keep the prop from wobbling. it doesnt.

so i informed roger that i have a 6025 that wobbles. he said no problem...i sent it back with an unmodded shroud and it was repaired and sent back to me in perfect working order.

[valentim]

can I use the koralia's with a red sea wavemaker?

[Entropy]

I wouldn't try it. First off the clicking noise it makes on restart would be incredibly annoying. Second I don't these kind of pumps are made to start/restart contiuously.

[sherm71tank]

Well. . . . . They work flawlessly on the Seio controller.

[markandkristen]

Originally posted by sherm71tank
Well. . . . . They work flawlessly on the Seio controller.

the wave maker turns the whole pump off

while the seio controller just revs it up and down from 50 percent to 100

so i think the seio controller has had success while the red sea wavemaker is not good for these pumps

[sherm71tank]

Agreed.

[ccorpse27]

Originally posted by Europa13
Choosing a Tunze nano stream 6025 over a K4 is pretty much a no-brainer.

The Tunze is a lot smaller (Tennis ball size compared to Coke can size)
With the simple mod, The Tunze will be equal in output (1200 gph)
Most importantly, TUNZE will stand behind their product. Hydor will not.
Tunze guarantees the entire pump, Hydor only guarantees the one part that will never break. Tunzes customer service is as good as it gets.

IMO, saving $3.00 to get a Hydor is not worth it.

Hydor stands behind their products 100% and has excellent customer service. Lets not bash a company because you think another is better.

[GSMguy]

this is a funny thread some people want to mod their koralia to get more narrow thread,

entropy you read the tunze nano thread wrong the flow from mr pink floyds nano never dropped off he just wanted more. in fact the 6025 produces more flow stock than advertised

the size difference from a koralia to a nano stream is crazy the koralia is the same size a big tunze or seio and half the flow of the other pumps its size.


why would you spend 150 extra dollars to lower your flow with the wave controller??

[mile sq. reefer]

Wow, I never realized I would trigger a Koralia v. Tunze debate. I just wanted to know what people thought of the Koralia 4's. I never posted the word "Tunze" in the original thread. Where is this going? It was informative at first, now its annoying.

[sherm71tank]

The K-4's are great pumps.