That filter looks good. Its similar to my tetra tec one. Very easy to use and you can put what ever media you like in it. As said above you want the coarse filter to be the first thing the flow reaches. This is usually a coarse sponge rather like you get in internal cartridge filters. The middle baskets can contain anything that supports lots of bacteria. I primarily use bioballs and ceramic rings
https://www.amazon.co.uk/Biochemica...ocphy=9044885&hvtargid=pla-736511045448&psc=1
https://www.allpondsolutions.co.uk/aquarium/media-foams/ceramic/rings/
Shop around as lots of places sell them cheap pond supply places are often a good source as they tend to mark up prices less than aquarium shops.
Really anything inert with lots of tiny pores for bacteria to grow in are fine.
You can chop up your internal sponges and mix them in with this media or if you don't want to damage the internal sponges just put them in the second basket - squish them in. And put the bio media in the next basket. After a few weeks you can just swap out the sponges for more bio media. Whilst it doesn't really matter where you place the internal filter sponges as free bacteria will be circling around anyway you will probably capture them more efficiently if the bacteria rich media sponges from your internal are placed just before your bio media. You can also gently sqeeze out the sponge muck onto your bio media first to maximise bacterial transfer. Also in the middle trays can go zeolite, carbon or anything else you want. I tend to only use the former if I have an unforeseen filter issue eg power cut or dead fish I didnt notice and remove. Its just a short term thing. Carbon I only use if I want to clear out meds. I have only used it a couple of times in the last 15 years.
The last basket (which on my filter is the uppermost), is where I do my fine filtration. You can buy also sorts of proprietary fine or polishing filter pads to remove tiny particles. I sometimes buy these but I also use filter floss. You can buy large bags of this unbranded from pond suppliers. Its all the same stuff and a wad of it laid out flat in the top tray cleans the last particles nicely. All filter media only needs a gently rinse in old tank.water. In my tank the bio balls are 16 years old. The ceramic beads eventually crumble and maybe last about 6 years or so so I just top up with new as and when. The filter floss and sponges just get a gentle squeeze and reused. The filter floss can be harder to reuse as it compacts but if you get a big bag its easy to replace. The polishing pads also can be reused many times.
Filter media rarely needs much replacing so shop around for what suits you best at a price that suits. EBay and online pet supplies often have good deals. You don't have to stick to one brand.
Re lighting I havent got much advice. I am still using my trusty Arcadia luminaire that takes T8 bulbs and still works fine.
These days much lighting is led based. The advantage is that the bulbs don't need replacing but the upfront costs can be expensive.
I suggest you look at what sort of plants you want to grow and what lighting requirements they have and then choose a lighting system that provides this. You don't need to go fancy with night lights and different controllable colour temperatures and high tech stuff unless you want to.
My 200 litres 18 inch deep tank had 3 x 38watt t8 bulbs which was fine for low to medium light plants. One bulb holder is now broken. So 76 watts I find is fine for a jungle of vallis, crypts, hygrophilla, hornwort, Java Moss and Java fern.
I have also added a very cheap and simple led light which gives a soft low light or a blue night light which use for late evenings and night time which the fish like. The low light helps the transition from night to full lights otherwise it spooks the fish. I can let you have the details if interested.
Here are some shots of my aquarium which needs a good clean and prune but you can see the lighting effects and what plants I have. The manky internal filter is just there as a fish play thing. They get treated to their favourite game of sliding in the current flow every so often. I dont leave it on permanentlyvas a few of them can get a bit obsessive
.The blue night light is much stronger in the photo than in reality, its really just a nice pale blue glow....
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