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Old 01-17-2005, 11:09 AM   #1
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do i need a new light for a bigger tank?

i have currently a 29 gallon reef tank...im upgrading to a 55 gallon...i have a 30 inch coralife (130 watts?) i wanna use my old light without haveing to get a new and bigger one...wil this work for a 55 gallon tank? it works great for my 29 gallon....just wondering .
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Old 01-17-2005, 11:15 AM   #2
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your 29 gallon is probably 30in while the 55 will be 48in. that leaves a lot of dead space with minimal lighting. You will also be dropping the watts per gallon by approx 2 watts. you will have less than 2.5 watts per gallon. What do you have in the tank?
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28gal bowfront
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2 O. Clowns
1 peppermint shrimp, 5 red leg hermit crabs,
4 mexican turbo snails, 15 nassarius snails
ricordea mushroom, candy cane coral,
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Old 01-17-2005, 11:19 AM   #3
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currently i have some dying colony polyps due to a stupid chocolate starfish, and had bad round of hair algae.. but thats all gone.lol... fish wise i have a niger trigger and a yellow tank...1 sea urching....4 turbo snails.. and 1 anemone...with about 3 inches of crushed coral substrate.
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Old 01-17-2005, 11:22 AM   #4
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the anenome may need more light than the 2+ watts per gallon depending on the type. If you plan on corals later you may be restricted on some of them as well.
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28gal bowfront
40lbs livesand(bag from LFS), 30lbs live rock(LR.com)
2 O. Clowns
1 peppermint shrimp, 5 red leg hermit crabs,
4 mexican turbo snails, 15 nassarius snails
ricordea mushroom, candy cane coral,
super color polyps, hairy mushrooms
bubble coral, hawiian feather duster
coralife lunar 2x65, HOT magnum canister
10 Gal refugium(chaeto) & seaclone skimmer
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Old 01-17-2005, 11:23 AM   #5
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If you plan to keep corals you will need to upgrade your lighting. 130watts on a 55 gal. is just not enough for most corals to survive, let alone and anenome.
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Old 01-17-2005, 11:24 AM   #6
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it probably wont work too well, since the 55 gallon is nearly twice as long (if it is the basic rectangle design) it wont be long enough to cover from one end to the other with intense lights, it will still probably light it up but you would have to stock any corals etc directly underneath the lights since it will be where the most intense light is, out to the sides will be lit but it will be very underlit for any kind of coral life, its just not enough watts per gallon and its not spread out enough. you would only have about 2 watts per gallon...not really enough.

if you have the lunar lights i have a 24 inch one id trade with you and then you would just need to buy one more 24 inch which is cheaper than a 48 inch strip...then you could have two 24 inch hoods...which will be about 5 watts per gallon, which is basically the same as buying their 48 inch hood since they use four bulbs instead of two.
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Old 01-17-2005, 11:27 AM   #7
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yeah i was afraid of that..them lights aint cheap...but i think it might work for a little while...im getting the tank today and plan to set it up to cycle sometime within the next week........the tank will come with 2 strip lights ...you think thatll be enough to get it to cycle at least ?oh yeah btw... whats next size up from a 30 inch coralife light...
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Old 01-17-2005, 11:38 AM   #8
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next size up is 36" then 48", strip lights will probably cycle it just fine.
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Old 01-17-2005, 11:39 AM   #9
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thanx yall
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Old 01-17-2005, 02:11 PM   #10
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Definatelty go for a 48" 4-65 watt aqualight. The tank will look funny with dim outer edges.
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