The striker joined Sevilla on loan after failing to make an impact at Anfield and has now insisted his new team-mate would be wise to stay in Spain rather than move to England
The forward, who was signed by Brendan Rodgers last summer, has been sent on loan to the Liga side after failing to score in 14 league outings during the 2013-14 season.
Moreno has been a target for Liverpool during the summer, with Sevilla demanding £18 million for their left-back, and Aspas has insisted the player would be wise to stay in Spain rather than move to England.
"Albert Moreno would never feel like he does in Sevilla at Liverpool," he told ABC de Sevilla.
"I've been here for three or four days. Now that I belong to Sevilla, I prefer he stays here."
Liverpool have already seen a bid of €20m (£16.2m) plus attacking midfielder Suso rejected for Moreno as Rodgers looks to further add to his squad following the departure of Luis Suarez to Barcelona for £70m.
Emre Can, Adam Lallana, Rickie Lambert, Dejan Lovren, Lazar Markovic and Divock Origi have already arrived for a combined fee of around £90m, while Liverpool claim a move for Loic Remy failed due to medical reasons.