Thanks. The tubes are regular connecting tubes for a gerbil/hamster cage. If you get tubes without holes in them you can build them up outside the tank as if building a tube run for a gerbil and fill them with water so the fish can swim up and out of the tank in the tubes. I'm waiting to see all three black tetras swim through the tubes like ducks in a row.





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My favorite is on course your pretty little betta girl. 

Kalei

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