turtle tank display refugium help
im new here, i have a 72g bowfront tank for a red eared slider turtle. basic setup; about an inch or so of river rock, a pvc dock, an old terra brand rock filter that broke so its decor with a fountain pump to circulate water, and my turtles pet goldfish (it was a feeder fish that survived and is now the size of a filet mingon steak). the tank is 3/4ths full or so (most the time less).
im looking into doing an extremly deep sand bed display refugium/water scrubber with either a spare 20 or 40 gallon tank (both being my res old tanks as ive been able to upgrade)
excuse my terminology please. if i say something that isnt understood ask!
the refugium plan is to be simple, 2 plexiglass dividers, one on each side of the tank. sand will be the primary "filler" unless told different. the plexiglass will go from the top down stopping a few inches from the bottom.
water will flow from the inlet, down through lava rock, egg crate, lava rock, sand. the lava rock is so that the water flow doesnt wash the sand away. the water will then flow up around plants and back down into the sand to peagravel egg crate peagravel (same principle with the washout). and out to a 55 gallon barrel filter which will sit below the refugium piped center down and wash up through various gravel sand and a filter pad before being pumped back to the turtle tank. (over filtration is ok in my book expecially since its the last stage.)
the projected sand depth will be about 5-6" or maybe more as it will be the main mechanical and biological filter for turtle tank.
i chose the water current to go down up down because i want as much turtle waste as possible to interconnect with the plants, and didnt much care for the "waterfall" style as i thought the waste could wash pass the plants too quickly, like a paper boat placed on a creek current.
the main life of the refugium will be general plants, maybe some live bearing fish (guppies or swordtails [to double over as turtle food]), mts (if they can travel that deep in sand) an assasian snail or 2, i may throw a crawdad in (lobster, crawdad, crayfish, they are the same in freshwater with differnt names)
main worry is toxins in the abnormally deep sand and the way the sand is catching the crud
1 need to know if my plan will work?
2 and other suggestions on aquatic life to help stir the sand?
admins if this is in the wrong section or if there is a section that may be of better help feel free to move it
Last edited by forumadmin; 02-15-2017 at 07:08 PM.
Reason: removing censored