07-20-2011, 07:29 AM
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Hi Etiennehache. I just made a tank divider from instructions posted in the threads here. Cost me $4 ish, since I had part already at home in the office. My tank is a 75 gallon and is 18 W by 20 T.
I bought 2 plastic mesh pieces from Walmart's craft area that were 22" by 13.5" at $1.67 ea. I measured an approximate length and width and trimmed off the excess usiing scissors. I put the seam vertical since I had to fold it a bit to get it down into the tank anyway. I used fishing line to sew the two panels together being careful not to go too close to the bottom incase I had to cut some off or I would cut my knot and it would unravel. Once I had created a full panel, I slid onto the edges vertically, two spines on each side from plastic report covers, cutting off the excess. 4 in all. Now the hard part... I cleared a trench at the quarter mark of the tank. I had to take the spines off, dry it off, twice and cut it down abit. one row at a time so that you don't cut it too small!! Once it was right I piled the gravel against the bottom on both sides to help steady it. I now have my baby Swordtail in there and a pregnant Molly.
Try to shoo out the fish you don't want behind the mesh... my danios kept getting on the wrong side and I still ended up with 3 cory's over there. Hope they won't eat the new baby Mollies. Once I know she has given birth from her shape, I'll catch her and move her over to the big side and all the babies can have the little side. It is NOT pretty but will serve the purpose for now. And it was cheap!!
Also keep it tall, but just below the top rim, as water changes will affect the height and you don't want fish jumping or swimming over if your mesh is not tall enough.
I'm sorry I don't have the thread instructions to post here for you. Try searching DIY tank divider....