2 x 150w MH for your tank size is not an overkill. So, have you made up your mind which brands? The cheaper ones can be found at NA. There is this nice SoLite Clip on you may consider but you may need two of that.
E tenellus remains short or even red if there is good blast of light. 'Training' by cutting is for fast spread of runners. I don't know whether this phenomenon is the psychology of plants when they get trimmed and sending sos alert and spread far and wide to avoid extinction
Maurice Cheong
A . M o m e n t . o f . T r a n q u i l i t y...
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