Koralia 425 or 550

[Dbrown4u]

I'm getting ready to set up a 30 gallon mostly coral tank, I'm just wondering if a 550 would be too much

 

[carey]

I have a 20g and the 425's are too little. I'd go with the 550's in my opinion.

 

[Dbrown4u]

Okay cool cause it's only like $2 more

 

[carey]

I ran 2 750's in my first sw tank, a 29g. lol You should be fine with the 550's Great powerheads too.

 

[Dbrown4u]

I hope so, I wanted one because of what you've said about them lol

 

[carey]

You won't be disappointed.

 

[Dbrown4u]

I hope not lol I just thought some corals don't like a lot of flow and I planning on getting 2

 

[carey]

It's just a matter of placement in the tank and getting your pwerheads set up just so. You can have several spots where the flow won't be so great for those you have in mind.

 

[Dbrown4u]

Okay, hopefully I'll get lucky and place them good lol

 

[jtrasap]

I'm anti anything Hydor. I haven't purchased anything with the Hydor brand on it since having a Hydor Theo heater explode in my 180g sps tank while we were on vacation, and later finding that 3 of the 6 koralia powerheads that I was running were all leaking copious amounts of voltage. I had a thread on this in another forum and found that it was a really common problem with them.

 

[carey]

I have about 8 koralias and have never had an issue. I do alsohave a theo hydor heater but i dont like it, doesnt keep temp well in my opinion. I dont even use the heater anymore.

 

[jtrasap]

I have about 8 koralias and have never had an issue. I do alsohave a theo hydor heater but i dont like it, doesnt keep temp well in my opinion. I dont even use the heater anymore.

Hopefully they've fixed the problem in the newer ones. I had them running for about 4 years without a problem. It wasn't until I removed the ground probe to take down the tank and reached in to a nice big zap that i found the problem.

Actually, the heater led to me finding the powerhead problem. We went to Indianapolis for a weekend and came home to a house that smelled like burning rubber. After sniffing around I found that most of the corals in my 180 were badly bleached or dead and the smell was coming from the water. After some digging I found the broken heater. The broken heater and dead corals then led to me breaking down the tank.

 

[jtrasap]

I might also add that their customer service was worthless when I contacted them regarding the incident.

 

[Dbrown4u]

Wow, sorry to hear about that. Hopefully I won't have any problems