Discus Tank Revamp Help

[typhoon]

okay, i have a 400L juwel rio tank, it currently houses 8 large discus, 20ish rummy nose tetras, 6 clown loaches, 6 corys, and a few plecs, one being a very large common ( which im considering getting rehomed)

the tanks been running a good few years and is looking tired so i basically want to "freshen" it up shall we say.

so

i currently have a fluval 4 (external) which im gonig to replace with the FX5 model. Thoughts?

also im after a UV as ive never bought a UV for a tank only ponds im after suggestions, on whats best for the tank and the fish?

substrate is currently tiny black quartz which i do like and would like to keep.

Plants? now all the platns i get get destroyed by the plec but considering i may get him rehomed or possibly swap him for some plants, would it just be wise to buy one of the discus collections that you get from the online aquarium plant websites?

basically im after opinions ideas? something new? out of the ordinary? What would YOU do?

Thanks luke

 

[thereverendturtle]

A 9-18 watt U.V. sterilizer would be suitable. If you rehome the plec, a discus plant package would be a good choice.