Hi all

,
This is my 1st post here.
My glass,leaves of my plants,the filter & the gravel all are covered by a Brown slippery thing,which I think is Diatoms

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The tank is a 50gallon,the lighting being 65watts x 2 for 10hrs a day.
My tank doesn't have many fast growing plants,currently I have many Anubias,Ferns,10 Vals & 2 Swords in it.I think maybe of less fast growing plants there is this breakout.
Please help........the tank has begun looking really ugly
Many thanks
Ravi