I have a ton of relatively new Neps in my collection. Most of them are growing in a 20 gallon long tank with four 40 watt cool white tubes supplying all the light. Lately many of my Neps have aquired mangled/burnt growth points, which has me worrying quite a bit.
Now, it's been quite hot here this past week, which I'm sure no doubt has to do with it. However, I have a feeling that I may not need that many tubes over my tank, since they seem to be generating too much heat for my plants.
So here's my questions:
1) Would 80 watts (two tubes) of light be enough for my Neps?
2) Is there anything I can do to help my mangled Neps? Is it too late for them? Is time my only prescription? Is more cowbell my only prescription?
3) Have any of you had this problem with Neps? Did they recover? How long did it take?