crypt melt question
hello, i dont know if this is my first post on here or not, but at the very least it is one of my first posts.
i have a few different types of crypts in my tank: balansae, lutea, wendtii, and some willisii. the lutea and wendti have pretty much all melted. the others are still doing good.
anyways, i dont know what caused this. the only thing that has changed with the tank is i the temperature on the tank raised about 5 degrees over a course of a day shortly before this happened. it was an intentional raise and is now maintained at that new temp. i wouldnt think this would do it because i have transferred these crypts from tanks that have varied more than this and have not had them melt.
i guess my question is if this temperature change over the course of a day could be what caused this massive melt, or what else could have possibly caused this. i guess i am just mad cause i have family coming in for thanksgiving and the tank is gonna look horrible now, and i would like to figure out how to stop this in the future.
my tank specs are....co2 at 25-30ppm, nitrates 10ppm, phosphates 5-10ppm, ph 7, kh 11, and all of these measurements have remained constant.
i have 4x55 watt pc bulbs over the tank and ecocomplete substrate. it is a 75 gallon tank.