What is Reddit's opinion of Hydor Koralia Nano Aquarium Circulation Pump, Includes Built-In Cable Protector, 425 GPH, Measures 2.4-Inches & is Ideal for Fresh or Salt Water Use?

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You've been so helpful, I hope you don't mind one more question. By your suggestion I'm looking at the Hydor Koralia Nano circulation pumps. The Amazon page for it says it's a wavemaker too. The books I've read recommend more than one circulation pump. Does that hold for wavemakers, or are they the kind of thing you just get one of so it can produce a coherent wave current without another pump fighting it... ? Like should I get one 240 GPH and one 425 GPH and position them on opposite ends of the tank, or just a single 565 GPH?

I've never had a problem with the Hydor Koralia power heads over the years.

Replying to both of you here - I'm about 5 days planted, so I can't tell yet where any stagnant areas are. I'll keep an eye out - I do have my pH meter and drop checker on the far right front and it's reading perfectly. I know I have current because of some of the debris that's floated up and is moving around. I'll wait to decide if I need one. I'm going to end up with a jungle, so a current will be pretty much required. I'm thinking about this one because it's small.

Question for you! I have sand now, and want to keep it clean easier. How exactly would I point the powerhead and where should I put it? I obviously don't want to blow the sand everywhere.

Also is it fine too use a powerhead with corys? I have this one and I feel it may be too strong in my 75 gallon tank. It's the 425 gph.

http://www.amazon.com/Hydor-Koralia-Nano-Aquarium-Circulation/dp/B0036S70ZG

Is there a way to tell if I am properly distributing my CO2? I have my output from my filter angled at 90 degrees in one corner of my tank, and a this circulation pump in the opposite corner. I do have a drop checker and it appears to be green.

For FOWLR, the light you've got would do alright, just don't expect to grow any coral with it.

Like one of the others said, the filter isn't going to do much of anything for you. You'd be better off getting a couple powerheads (like this one) and a protein skimmer. There's a thousand varying opinions on skimmers so I won't even bother linking to a specific one, but just about anyone will agree that they're super useful, but remember, you get what you pay for.

The other big thing that is often overlooked and later comes to bite people in the ass is their water source. Tap water has tons of metals dissolved in it. A conditioner can neutralize chlorine, but there's so much other junk that will eventually build up and have a way bigger effect in a SW tank than any FW tank. RODI is the way to go. You can either buy it at your LFS by the gallon, or invest in your own RODI filter which usually runs $100-200 for basic consumer-grade models.

Folks on the forums and around here say it all the time, "Nothing good ever happens quickly in a reef." Do your research now, and even if you miss the dollar per gallon sale, the $10 you saved on the tank will be totally irrelevant once you start buying everything else. The sidebar links are useful. Subscribe and lurk for a few months. Read people's [Help] posts. Rushing and being cheap are probably the two easiest ways to end up with a disaster-tank.

Hydor Koralia Nano Aquarium Circulation Pump, 240, 425, 565 GPH https://www.amazon.com/dp/B0036S70ZG/ref=cm_sw_r_apan_glt_i_4RR3HKGK6AS79GVWWWAQ?_encoding=UTF8&psc=1

And 2 others that I picked up used.