What is this

Rtc/tsn

Redtail Catfish
MFK Member
Apr 22, 2021
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Cincinnati
In my 3g tank I’ve been cycling for a leach for a couple weeks now I’ve noticed biofilm growing but there’s a layer at the top of the water kinds like fibers, is this just a protein buildup since I haven’t gotten a filter in it yet or what is it?image.jpg
 

tlindsey

Silver Tier VIP
MFK Member
Aug 6, 2011
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Ohio
In my 3g tank I’ve been cycling for a leach for a couple weeks now I’ve noticed biofilm growing but there’s a layer at the top of the water kinds like fibers, is this just a protein buildup since I haven’t gotten a filter in it yet or what is it?View attachment 1497773s
Was the wood from a established aquarium if so probably die off .
 
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