Hello, im new to aquascape. i would like to ask some question, i'll make the question in list to make it easier to answer.

1. how many ammount of shrimp, and snail to fit best in 3x4x35 tank?
2. what kind of snail best to add? i once buy a zebra nerite and 1 month later the population goes boom. i want to controled the snail population as much as possible.
3. can i add fish? will the fish stressed out in small wide tank without any filter? what fish (beta/guppy)?
4. the most important. i designed the tank roof of the neptune vandal to be detachable. so i can clean it just in case. i done watch some youtube videos "dont need to clean aquascape". is it really do? or its fake?

thank you for helping me answering my question. any opinion are welcomed

ingame

the design (modified)

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oh, i also done making zedd waveform knife

IRL Waveform Knife (done)