Your tank is 29g ?
I'd donate or return him.
You don't have room for Plecos IMHO
Consider 4-6 Otos instead once your tank is more mature. As long as you have some live plants and driftwood they are my favorite algae eating fish.
Or get a Nerite Snail.
Only get an Algae eater because you want one. You don't have to have them. If you control your lighting and keep tank clean you may rarely get much visible algae.
You need room to fill out your group of Tetras.
I would add a group of Corydoras if your substrate is smooth enough.
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