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power heads

1907 Views 8 Replies 4 Participants Last post by  h2ogardener
Hi, I have learned a lot from reading these post,and here is my first post / question. I have a 20 long tank with 12 pots of 6 speceies the water is just above the soil.I would like to know about powerheads,is one necessary in such a setup? And humidity,do I need to measure it and if so what should it be? here is a pic.

The top is usually covered, this is an 8 month old set up.
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Thanks for the replys.
They get 12 hrs. from a compact flood light,and is close to a window to get some sun light,amount of sun would depend on the season.
No,not yet.I am thinking of using a bloom fertilizer,I now use 20-20-20 when I change water every 2 to 3 weeks.Any suggestions?
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