guys,i just bought a nano tank, size is approximately 30X20x20cm. Got a few small fish and some plant from xian long shah alam along with some gravel and coral-ish sand(dunno what its called)
Being a complete noob,i dont get any substrate or proper lighting,thinking the plant can survive on its own. Its kept in a dim room with some sunlight shines directly to it but at a really low intensity.
after i set up the tank,i spend a few hours online to get a clue on aquascaping.thinking adding some low light foreground plants and do i need a proper lighting for it? Can you guys guide me on where to buy substrate,plants and do i need fertilizers?. Was gonna visit aquascape paradise shah alam and fish depot PJ today to survey.
also thinking bout adding a crayfish or bettas to the community but issit safe?
Im trying to keep my tank as low cost as possible until i have enough knowledge to venture to high tech tank with co2 and all.
sorry if im being vague..i have little clue on what i should include. Guide me please

guys,any clue where to get the bazooka diffuser? those really fine co2 bubbles looks so tasty
https://www.youtube.com/watch?v=C2vtxBchqbc

I have an OF manual regulator. Works well for me. Gv consistent bps everytime and i set it to run for 10hrs.im planning to upgrade to solenoid type. Do let me know if u want mine. Item is still new. Not even 1 month

Lol yea. I turn it on at 8am and turn it off at 6pm. Now looking for a solenoid that can support in line diffuser. Any thoughts?

depends on ur budget.can go as low as 70 up to a few thousands.each with its own advantages.im a newbie also but been there done that

If 30x30,u can try fluval set. Quite cheap. But it uses the disposable co2 canister. Good for u to get a hang of it but if u can poke some extra budget, around 200 u can get a starter kit. How it last depends on how much u use. For 30x30 u might be running on 1 bps nly so its gonna last long