Posted: Thu Feb 23, 2012 11:38 am Post subject: ATS question
Planning to build an ATS for my 120gallon saltwater tank with PLL lamps intead of T5HO cause 36watt pll are cheaper and easy available rather then T5HO in my location. I have few questions regarding that. the questions are given below:
1) Will pll lamps produce the same results as T5?
2) 36watt pll lamp are 15inch by length,so the sreen size should be 15"x5"=75", 2nos of 36watt pll will lit the screen. This type of 2 unit can handle a 120gallon setup succesfully?
Posted: Sat Feb 25, 2012 6:16 am Post subject: Re: ATS question
2) The size that your scrubber need to be is not based on gallons, it's based on how much you feed. How many cubes of food are you feeding each day.
What does "2nos of 36watt pll" mean? Here are the sizing guidelines...
New Scrubber Sizing Guideline (Sept 2011)
Scrubbers will now be sized according to feeding. Nutrients "in" (feeding) must equal nutrients "out" (scrubber growth), no matter how many gallons you have. So...
An example VERTICAL waterfall screen size is 3 X 4 inches = 12 square inches of screen (7.5 X 10 cm = 75 sq cm) with a total of 12 real watts (not equivalent) of fluorescent light for 18 hours a day. If all 12 watts are on one side, it is a 1-sided screen. If 6 watts are on each side, it is a 2-sided screen, but the total is still 12 watts for 18 hours a day. This screen size and wattage should be able to handle the following amounts of daily feeding:
1 frozen cube per day (2-sided screen)
1/2 frozen cube per day (1-sided screen)
10 pinches of flake food per day (2-sided screen)
5 pinches of flake food per day (1-sided screen)
10 square inches (50 sq cm) of nori per day (2-sided screen)
5 square inches (50 sq cm) of nori per day (1-sided screen)
0.1 dry ounce (2.8 grams) of pellet food per day (2-sided screen)
0.05 dry ounce (1.4 grams) of pellet food per day (1-sided screen)
High-wattage technique: Double the wattage, and cut the hours in half (to 9 per day). This will get brown screens to grow green much faster. Thus the example above would be 12 watts on each side, for a total of 24 watts, but for only 9 hours per day. If growth starts to turn YELLOW, then increase the flow, or add iron, or reduce the number of hours. And since the bulbs are operating for 9 hours instead of 18, they will last 6 months instead of 3 months.
HORIZONTAL screens: Multiply the screen size by 4, and the wattage by 1.5
Flow is 24 hours, and is at least 35 gph per inch of width of screen [60 lph per cm], EVEN IF one sided or horizontal.
Very rough screen made of roughed-up-like-a-cactus plastic canvas.
Clean algae off of screen every 7 to 14 days, so that you can see the white screen material.
Posted: Sun Feb 26, 2012 4:41 pm Post subject: Re: ATS question
"what does 2nos of 36watt pll means"
Actually what i am try to say that if i go with a HORIZONTAL 2-sided screen suppose screen size 16"x4"=64 square inch & the screen lit by 36watt PC light on one side & another 36watt PC light on the other side of the screen.
2 common clown
2 azure damsell
1 regal/hippo tang
1 fox face
2 yellow wrasse
2 banner fish/wimple butterfly
My feeding scedule:
2 frozen cube per day
12-14 pinches of flake food per day
12 square inches of nori per day
approx 3-3.5 grams of pellet food per day
I am battling with GHA nowadays & recently my skimmer pump burns out.Hence i have decided to go solely
on ATS route. So please suggest me about the proper ATS screen size, lighting wattage & time which can provide a strong filteration in my skimmerless system.
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You cannot attach files in this forum You cannot download files in this forum