水草情迷

請問個瀘涌響(達達聲),求解決方法.....help me

Suggest to do the following:
1. check if there are any parts loosen;
2. remove the motorhead from the canister and turn it on, see if the sound still exists
3. check if there is air accumulated inside the canister

What is the brand/ model of the canister? How long have you been using it?

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24"x12"x14" w/ Eheim 2026+Arctica Mini
GLO T5HO 24Wx2
Lighting: 12:00pm-9:00pm
CO2: 2+ bubbles/sec
ADA Amazonia New