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50 degree optics are really to penetrate deep, that's way to focuses for a 20g. Your tank isn't deep at all. So, you could probably take off the...
6700K is good. CFL or if you can find an LED, that should work. The glo 18000K is not typical 18000K and probably can grow some algae. It has a...
Man, you want us to give advice and do work? :P Carpet anemones get a few feet in diameter, I just don't see them fitting for long. He probably...
Possibly, but I'm not sure this is true though at this level. Certainly many parasites wouldn't care less. Also, long term I tend to think it's...
7.8 should be fine. It is usually a sign of stress though, although, I'm not sure what the stressor is from your description. Why is your s.g. at...
Pics?
It's common for macro algae to become nutrient limited. Often iron is the limiting nutrient and many people do dose Iron to keep their macro algae...
Nice build, diy leds came out nice. I like the color of the bridgelux LEDs and they are pretty affordable, so, great to see more builds with them....
They aren't $300 more if you compare them to other variable speed pumps. The Tunze, variable speed pumps, when you add in a controller, and use...
I think you are mixing up lighting types. Metal halides are designed to cover 2'x2', so, you would need 3. Most people with 4' tanks, have 2....
The eye sees the same amount of yellow-green light, 20x brighter (or more) than the same amount of blue light, even though it's the same amount of...
Tanks looking great! Glad to hear that the algae scrubber is kicking in more. As far as dusting the rocks, in a mixed reef, it can be tough to get...
Even killing it, all, they would probably come back and they are storing a lot of organics. The decaying aptaisia, would likely feed cyano and other...
Haha, that's great. Almost seems fake though :)
I just saw this on another site. Pretty cool. Kind of creepy looking too though :lol:
Looks good, I'm guessing these are evolution lights, without optics though? Without optics the spread is pretty wide, and hanging 12", you are...
Generally, LEDs will be in increments of 12 if your using typical CREEs, with meanwell drivers. If you spaced them a bit, 12 may almost cover the...
I've been debating it for a long time, probably 7 years or so... However, I haven't yet. I am still thinking about a zeo reactor, but for a carbon...
Well, if your water is that low, your membrane will last a long time.... Still sounds fishy though.. Hopefully AZ will chime in.
Obsessive compulsive disorder... Well, there may be some truth to that LOL, but there are other factors. A zeo reactor is very effective at growing...
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