Jelly like algae

I have had my scrubber running for around 5 weeks now and the algae grown is like jelly has is this normal

Not really. Pics please.

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It may be hard to tell fromantic the pictures but its really jelly like.last weeks clean was just your normal algae but this time it's like this.

Might need some more light.

I'm running 8 3w red leds on for 15 hours the first couple of cleans where normal algea but this one is strange

Nutrients are just less.