11-21-2016, 06:53 PM
The Plant Whisperer
Join Date: Jul 2004
Location: Harrogate, TN
iTrader Positive Rating: 100%
| | Re: Beginner's Guide to starting your first Emersed setup!!
Could have been, though you might also be right with your first suspicion of it being too wet/humid in there. A fully sealed tank can be too wet and promote fungus growth. Hard to say without good close up photos. You'll get it right with a bit of experimentation though!
On a 10 gallon tank I'd keep the lid open leaving a gap that runs the length of the tank about 1" wide. Wider than that and the tank dries out too much, less of a gap an you get a lot of condensation on the glass (which isn't necessarily bad, but you can't see anything inside).