Tropical Fish Keeping - Aquarium fish care and resources

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brianm1987 12-19-2011 04:59 PM

Crypts Melting?
So, I've run into a little problem. My planted 10g which has been up and running for about 3 and 1/2 weeks now started off great. My sword started showing new growth, and after the first week my crypts seemed to double in size. It seems though that all of a sudden two of my crypt plants are "melting" or dying off. Half of the plant looks like it just melted away and died and some of the leaves that are left are kinda clear looking. The other two crypts in my tank are doing great, nice size, seem to be growing well. Is this normal? I've heard of crypts "melting" but don't they usually do that right after being planted or moved? Should I keep them in the tank, or should I remove them?

Info on my tank- I dose Seachem Flourish once a week, 15% water change once a week, and I also use Seachem root tabs. My light is a T-8 G.E. Daylight, on about 8 and 1/2 hours a day. Any ideas anyone? Am I doing something wrong?

Boredomb 12-19-2011 06:47 PM

Crypt melt can be triggered by any change in the tank. Water parameters changing by water change or difference I'm light. For intense being shaded by another plant when it wasn't before. Temp change can cause it also. There are many things that can cause it.

This is taken out of one of the crypt profiles we have here and I quote:
" Crypt Melt: All species in the Cryptocoryne genus require stable water parameters/conditions and light, and once planted, crypts should not be moved. It generally takes up to 30 days for a crypt to become established. Within a couple of days of any significant change in temperature, pH, hardness, light intensity or duration, nutrient availability or disturbance to the roots by moving (either within the aquarium or to a different aquarium), the plant may "melt." This condition involves the leaves disintegrating into a pile of mush, sometimes within a day or two. The roots usually remain alive, and if not disturbed (siphon away the "mush" but do not disturb the roots) new leaves tend to appear within a matter of a few days or sometimes longer, even up to several weeks or (more rarely) months."

Byron 12-19-2011 07:04 PM

Agree. Look for anything that may have changed just prior to the start of the melt. I once had an entire stand of beautiful crypts in two tanks completely melt within 2 days of a water change. I discovered the pH of the tap water had been altered by the water board.

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