
Originally Posted by
illumnae
11W will definitely not be enough for HC to creep...hairgrass should still be ok if you trim often to train it to creep. my 25cm nano cube is running on a 13W light and the HG is creeping despite me not having trimmed it in 2 months (slow growing as it's excel not co2 enriched).
what space constraint are you facing? perhaps you can consider the Dymax light instead of a clip on? it's 13w and has adjustable length so you can easily fit it on your 20cm cube. it doesn't take up more space than a clip-on imo. i also feel clipons will put added stress on 1 side of your tank, and since it's a very small tank it might give way?
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