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Old 03-08-2005, 08:02 PM   #1
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To Spray or Not to Spray

I have had my tank set up for a few weeks now and everything is running pretty well. The only problem is that the sand in the bottom of the tank is being blown to the side and exposing the bare glass.

I was considering putting a spraybar from the return of the pump versus the single nozzle I have now.(which is moving the sand around)

Is it better to have powerful water movement, as in the single nozzle, or to have less powerful movement, as in the nozzle??????

TIA
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Old 03-08-2005, 08:08 PM   #2
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??? DO you have your return pointing straight down?
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30 gal standard 55 lbs LR, 60 lb live sand, 10 gal sump/refugium. Urchin skimmer, mag7 pump, 3 x 96W PC combination 10,000K/actinic bulb, 2 blue LED moonlights
SG 1.024, temp 79.5, pH 8.4

Livestock I added:

1 skunk cleaner. 12 hermits: red, scarlet, blue. 15 or so assorted snails. Discosomas, Ricordia, Rhodactis mushroom corals, chaetomorpha (sump), 1 feather duster, Montipora digitata, Montipora capricornis, Montipora hispids. assorted zoos, Xenia, Kenya tree coral, green Sinularia, green star polyps, branching hammer coral, bubble coral, Devil's hand leather. Yellow chromis, purple firefish.

Hitchhikers: the usual suspects :crabs, bristles, urchin, mantis shrimp (now in exile in mantis tank)

List of possible/likely newcomers:

Feather duster. PJ cardinal, Bangghai cardinal, Firefish goby, Clownfish, Neon goby, Yellow watchman goby, Orchid dottyback. Various corals.
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Old 03-08-2005, 08:25 PM   #3
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No
the return is angled down and pointed at the front glass for the water to deflect off the glass and give good water movement throughout the tank
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Old 03-08-2005, 08:36 PM   #4
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How big is your tank? More water movement is better. JMO. Point the nozzel toward the front glass at 45 degree angle and up toward water surface a little for better gas exchange. This would reduce the flow force down toward the sand. I had to adjust mine several times too to get the water curents in my tank right.
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Old 03-08-2005, 09:36 PM   #5
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Good point. Surface agitation is ideal for gas exchange. The energy lost to the waves at the surface should ease the blowing of the sand somewhat. I have a mag 7 pump and 2 powerheads going and I don't have any problems with blowing sand (I do see the individual grains dancing at times, though.)

Good luck.
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30 gal standard 55 lbs LR, 60 lb live sand, 10 gal sump/refugium. Urchin skimmer, mag7 pump, 3 x 96W PC combination 10,000K/actinic bulb, 2 blue LED moonlights
SG 1.024, temp 79.5, pH 8.4

Livestock I added:

1 skunk cleaner. 12 hermits: red, scarlet, blue. 15 or so assorted snails. Discosomas, Ricordia, Rhodactis mushroom corals, chaetomorpha (sump), 1 feather duster, Montipora digitata, Montipora capricornis, Montipora hispids. assorted zoos, Xenia, Kenya tree coral, green Sinularia, green star polyps, branching hammer coral, bubble coral, Devil's hand leather. Yellow chromis, purple firefish.

Hitchhikers: the usual suspects :crabs, bristles, urchin, mantis shrimp (now in exile in mantis tank)

List of possible/likely newcomers:

Feather duster. PJ cardinal, Bangghai cardinal, Firefish goby, Clownfish, Neon goby, Yellow watchman goby, Orchid dottyback. Various corals.
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