I has been using 15W Arcadia Freshwater 7500K lamp for two years without any problem.
IMO, although the initial investment for these branded tubes is high, you will realize it is money well spent in the long run as it will last longer than cheaper FL tubes (Despite of many people advocate tube changing for every six months).
I had used Hitachi EBT before but i still prefer Arcadia freshwater lamp as the latter is absolutely brighter and whiter.
For Arcadia Original Tropical tube, i think you guys can skip this.
PL tube is a good choice as well but somehow i find the colour tempature (6500K)very unpleasing to my eyes and it is hotter than FL.
I may try out the ADA NA tube (8000K) very soon.
Aquatic plants and LEGO collector.
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