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· Plant Clown
4,737 Posts
I started a crypt tank a couple months ago with about 6 varieties. I did a water change with water that was very warm (probably 95-100 degrees) and over the next week most of the crypts in the tank had a massive melt. They've all begun to recover, but it took a couple weeks to see solid new growth.

There are a lot of theories as to why crypts melt. Being replanted is an obvious one, but certain swings in water parameters seem to do it. Personally, I feel that giving them dirty looks is a trigger as well, though I have no hard evidence to prove it.
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