Hi again. Wonder what your personal reviews are for Resun UV-05 (submersible, works with air pump) and UV-06 (outside the tank, works with power head) sterilizers.

I am looking forward to install a UV sterilizer in order to achieve propper REDOX levels (aim to -300mv) in my 6footer, 145gal, Amazon tank (Oscars, Green & Gold Severums, Convicts).

Would a submersible model (UV-05) be safe to use with Oscars -considering their amazing abilities in moving everything around? Are there any other CONS in using these models instead of the external (UV-06) despite the looks inside the tank (I would find a way to hide it). Are these as good as UV-06 models?

I discarded using Tetra UV sterilizers due to their tendency to modify UV lamps (forcing the purchase of their -by the way- just more expensive - but not technically improved- lamps models).

Thanks
Pepe
Santo Domingo