Quote:
Originally Posted by JmeJReefer
From my understanding, the rw-4 is equivalent to the jebao wp-10 which is in my 14g biocube without issues. An rw-4 will be fine in a 20 gallon. A low intensity "else" mode should give u the random flow ur lookin for.
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Do you have a sand bed in your tank? Fine or coarse sand? Thanks for the reply!