Looking at the water why is there brown algae？

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　　= (Comments on alliance Sianlon Arowana Aquatic friends) =

　　 A Kafka Say: Not bad
Yuyou Qiuweixin002 Say: Background reason, brown algae is the breeding and spread of nitrifying bacteria
Yuyou cngogjivw Say: Its been very good
Yuyou wild fish hobby Say: Pretty
Yuyou13934504660 Say:
Thank you Qiu Weixin002
Background reason, brown algae is the breeding and spread of nitrifying bacteria
Yuyou13934504660 Say:
Thanks cngogjivw
Its been very good
Yuyou13934504660 Say:
Thanks wild fish hobby
Pretty
Fish Friends Tayir Say: What size cylinder
Yuyou Mugu Morning Clock Say: Reduce lightWhat color lights are used for colorful dragon fish"What color does the arowana background use$What color to use for keeping red dragon fish tank&What lamp color is used for raising arowana!What color is good for arowana background~What background is red dragon fish suitable for?#What background to use for gold arowana%What color lamp is used to raise red dragon@Looking at the water why is there brown algae？！

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