[Deanos]

Aaah...the wonders of Microsoft Paint. This is as basic as I could draw it I get random movement in my 65g LPS dominated tank as the return flow alternates left to right.

	LPS Large Polyped Stony corals – In the aquarium hobby this is a common division of the species of stony corals based upon the visual assessment of the size of the polyps. Corals in this category were among the first stony corals to be kept successfully in captivity and include many very beautiful species. Commonly kept Genera include Euphyllia (hammer/frogspawn coral), Favia (brain coral), Plerogyra (bubble coral), Lobophyllia (meat/tooth coral), and Caulastrea (candycane coral). LPS corals also include the popular solitary non-colonial stony corals such as Fungia (plate coral), Cynarina (button coral), Trachyphyllia (open brain coral), and Herpolitha (tongue coral). Like their SPS counterparts, LPS corals require good water quality, intense lighting of the appropriate spectrum, adequate water movement and regular supplementation of calcium.

[cali_reef]

Quote: Originally Posted by fritz Motion is always better then flow no? Laminer flow is BAD, at least that's my understanding. I'm not a Tunze havin' SPS guy so maybe it's different but for everything else I know random turbulant or surge is what you want. Laminer can be damaging plus leads to dead spots. Having a giant whirlpool is not what you would want in a reef. True?

Yes, you are correct. But all these powerheads pretty much creates whirlpools, unless you use Tunzes with a 7095 controller set up to simulate tide effects. It is very difficult to simulate wave and tide surges in a reef tank with powerheads or even a surge tank setup, I have tried and so far the wave box is the best I have played with.

	SPS Small Polyped Scleractinians - Sometimes known as Small Polyped Stony corals. These are hard corals that have extremely small polyps. They are typically on the difficult side and require Metal Halide lighting or dense Power Compact or T5 arrays. These corals are prized for their rareness and ability to be easily fragged into multiple colonies.