View Full Version : Lighting change melting my crypts?

08-21-2010, 12:04 PM
The title pretty much sums it up. I recently changed my lighting (4200K to 6700K bulb) and since the change, my crypts are melting. Nothing else has changed in the tank, the fert dosing has stayed the same, I haven't disturbed them ... I can't think of another cause.

It's just a bummer because they were finally starting to get nice. :scry:

Lady Hobbs
08-21-2010, 01:50 PM
What's your total wattage? My crypts are under 6700 k's as well but my total wattage is only 1 1/2.

08-21-2010, 03:23 PM
Yes that can happen with crypts. The 6700K bulb will be brighter but probably has a different light spectrum than your previous bulb. As a result the plant will melt for a bit while it gets used to the new light spectrum. I've seen it happen before.

08-21-2010, 09:33 PM
The total wattage is 30W (in a 20g, that makes about 1.5wpg) and I changed one of the 15W bulbs.

It's real bummer that they melted. We've had horrendous trouble with them in the past and they were finally starting to look decent. We had a few stemps that were 5-6" long ... hope that they tough it out.

Would you recommend I change the other bulb while I'm at it? At the moment it's an AquaGlo and I'm considering either a PowerGlo (more bluish light) or a Coralife 10000K. The bulb is about a year old, so due for a change ... just don't want to melt the rest of my crypts.

Michael Milligan
08-21-2010, 11:04 PM
The leaves of the plant grew to suit old condition. They no longer function and will in time be replaced.

09-18-2010, 08:48 AM
The same thing just happened to me. I changed from some plant bulb that came with an aquarium kit (it was 15 watts of light but I do not know the Kelvin rating) and I went to a 13 watt CFL 6500K. I imagine that the different spectrum of lighting is what caused this. My other plants started to grow pretty fast. I hope my crypts come back. :11:

09-18-2010, 01:57 PM
Crypts are sensative to changes, as long as the root and sten stay healthy they will come back. You can trim off the withering leaves.