Is it the same substrate in the last two pics?
The watt per gallon guideline doesn't apply to LED lighting. For LEDs, it's more about their intensity/lumens, color-temperature, quality of their reflectors,
With the glass tops being on that tank, you should have very little water loss and zero moisture issues. The losses out of the 4 tanks in my sig are
This is still going on haha
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Here is one of the lots for the discus raffle:
3-3.5" Fiamma Rossa from Kenny's Discus(photo from Kenny's Discus):