I'm experimenting with live plants in a 10 gallon with 10 neon tetras and a gigantic pleco that I can't seem to kill (he has survived 2 different tank die-offs in 2 years).
I've set up the tank near a window and planted it with two small plants for now... there is a decent-sized filter and (since the last fish tank travestry was temp-related) a water-heater.
The tetras (a new addition today) seem ridiculously happy... but the tank is rather empty-looking.
-Can I add a few more fish? Or are there already enough for this size tank? (I hear 1 per gallon... but tets are ~tiny~)
-If so, what will get allong with the tetras?
-Do I need a CO2 system? (if so, will it affect the PH of the tank?)
-Will the light from the window be enough to support the plants or should I invest in a sun-lamp for them?
-Is gravel enough for a substrate?
-Should I remove the filter? (ie... will the plants gunk it up?)
-I'm thinking of adding some small shrimp to clean the plants, will they eat the tetras?
-are snails a good idea? (or will they multiple like crazy and take over the tank?)