ceg4048 said:Yes a distinct possibility as a result of ammonia imbalance under the lights. Yes vallis would be a really good choice, but there are more than a few plants that can get their carbon from the bicarbonates in the water, probably anything originating from temperate zones like vallis is.
ceg4048 said:Well I can't see any point in dosing without plants. Growing plants remove the ammonia and nutrients support that growth. No plants - no growth - no removal. You'd just be feeding the bacteria and whatever algae does form.