Fluval Edge 23l Lighting Upgrade

Creature Seeker

New Member
5 Aug 2015
Hello all.

Our light unit on our 23l Fluval Edge has failed. As I now have to replace it, I was thinking of upgrading to the 46l light unit as it has double the amount of LEDs, but fear this may be too intense and cause algae issues.

Does anyone have any experience with the 46l light unit in the 23l tank?

Before the light unit failed, I dosed the tank with Excel Flourish once daily which helped plant growth, but most was concentrated to the area immediately under the light, which would then block the light out to the edges of the tank.

Many thanks for your replies.

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