Is a 85Watt Fluoresceht light too much for a 20 gallon planted tank?

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jcsaad

Aquarium Advice Apprentice
Joined
Mar 15, 2010
Messages
16
Plants in tank: Water wisteria, anacharis, Alternanthera reineckii, anubias. Currently the tank has a 15 watt fluorescent bulb which is extremely low ligh and so the plants arent growing at all.
Will the new light show me increased growth or will I have an algae bloom? (i add liquid fertilizer each week but no co2 injection)
 
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