![HELP! Cleaned my fluval 407 and put some new denitrate in and it's making this rattling noise. Any suggestions? : r/ReefTank HELP! Cleaned my fluval 407 and put some new denitrate in and it's making this rattling noise. Any suggestions? : r/ReefTank](https://external-preview.redd.it/LDGbHQR8hhy_B_D9LcQ7Zq8T0A6ws2yDUNyKjjC_SeE.png?width=640&crop=smart&format=pjpg&auto=webp&s=d1d079d5048b9cc69ffdb5f37be40148dcff2928)
HELP! Cleaned my fluval 407 and put some new denitrate in and it's making this rattling noise. Any suggestions? : r/ReefTank
![My top fin filter is making a weird noise, I just cleaned the tank and now it won't stop making noises, should I buy a new one tomorrow? Or is it fixable? ( My top fin filter is making a weird noise, I just cleaned the tank and now it won't stop making noises, should I buy a new one tomorrow? Or is it fixable? (](https://external-preview.redd.it/gxakWK6XAO6GZuMdWuQqnSOwd7aM_9KQtgxY8enWzXY.png?format=pjpg&auto=webp&s=c9db24301944a44afa419503b8db6a428fbf9aa8)
My top fin filter is making a weird noise, I just cleaned the tank and now it won't stop making noises, should I buy a new one tomorrow? Or is it fixable? (
![HELP! Cleaned my fluval 407 and put some new denitrate in and it's making this rattling noise. Any suggestions? : r/ReefTank HELP! Cleaned my fluval 407 and put some new denitrate in and it's making this rattling noise. Any suggestions? : r/ReefTank](https://external-preview.redd.it/3_-L9aeqamJ8DoLjweco1AgU8xU6xTfDUfbHl6omEvU.png?format=pjpg&auto=webp&s=45a897b820374872638f47aeafb55299ef4eb376)