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I was wondering if anyone has had reds spawn in a bare bottom tank. I currently have fake grass covering to bottom of the tank and I think its causing some water issues trapping waste beneath it. I will most likely be pulling it out but I was thinking I would just go with no substrate. However if the reds wont breed without substrate I guess ill put something in.
 

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I would imagine that nothing will stop them... the problem would be the eggs moving and drifting in the current after.
 

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You could try using a flat tupperware full of substrate, not sure if they would take to it tho.
 

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i tried the barebottom tank thing for a while and what i ended up doing is putting in a little gravel at one end in case there was any breeding...but there was no breeding until i fully put in substrate and made the tank more of a natural look...but that was just my experience.
 
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