Thanks guys, that was the question I was asking "minimum depth to breed rays".
Didn't mean to cause any disagreements, apologies for that.
It was very interesting to know big rays can breed in as little as 12" of water, albeit not really recommended, even by oldfish who has done it.
I've been quite successful with 24" of water, was hoping to get away with 18-20" as there's a big difference in price on 30" deep (15mm glass) compared to 24" deep (12mm glass).
Please keep posting successful breeding depths as it would be great to know what others are using, plus I've got a few more months to decide
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Thanks for all the input so far.
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