I just ordered a new 3 bulb T5HO fixture for my 90 gallon tank. It won't arrive for at least 5 days, likely a little longer.

Tomorrow I'm going to be out of town in a place where Hygro isn't illegal. I want to get some for my tank, but the fixture still won't have arrived yet. I'm wondering if the Green Hygro will survive in absolute garbage lighting for a period of around a week.

The only light I have on the tank now is a laughably underpowered Top Fin CFL that came with my 10 gallon starter kit over 2 years ago. Strangely enough, the anubias and java fern seem to be doing great in this light. My amazon sword is surviving but not thriving. I didn't think a 10 gallon light on a 90 gallon tank would grow anything. So for that reason I am optimistic that the Hygro would survive a week in poor lighting.

The only type of Hygro I've kept before was Water Wisteria (Hygrophila difformis ). It did very well until I had to dark out my tank for a period of about a week to rid myself of some cynobacteria. The wisteria died, the anubias didn't.

Sorry for rambling. Basically I am wondering if Green Hygro is particularly sensitive to a lack of light for a short period, as my Water Wisteria was.