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keeping fish in plastic storage totes as a growout/hospital/quarantine?


LeftHookGary

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Yes, I have kept fish ( guppy and gourami fry mostly) in clear / transparent 'hobby box' type containers for a year or more, with heaters, quite safely. Also used some of the darker plastic tote boxes outside for mini fish-ponds. I washed mine out well with detergent and rinsed thoroughly several times to make sure there were no manufacturing residues. I suspect some of the lower-grade plastics with bright or fluoro-colours might be a bit dodgy, but clear plastic, food-grade plastic or better quality plastics I think are pretty much fine. I have fairly neutral water here, acid water conditions might be different perhaps?

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I use one those ones from the Warehouse with small wheels on the bottom as a quarantine / hospital tank, haven't had any noticeable problems. Cold water though & if I used a heater I would make sure it was kept away from the plastic (a lot of plastics soften at 60C). Also only keep it  2/3rds full to prevent any bowing of the sides.

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I recently cycled a sponge filter in a clear(ish) lidded 60 litre Taurus one from The Warehouse and have some gouramis in it now while I get their tank set up.  The heater is stuck to one long side horizontally using the suction cups; even when it's heating, I can't really detect any temperature difference between the plastic beside the heater and the rest of the bin, so it's certainly not going to melt.  I cut a couple of slots in one end of the lid with a hot knife for the air line and power cords.  Think I put about 50 litres in there, no substrate.  The sides and bottom are bowing but it's holding together fine (I wouldn't use one that has seen any UV though).  I just rinsed it out with hot water in the shower.  Fish haven't died yet :-)  

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