Yes, anything is better than nothing, i absolutely agree.
The baffles won't help, though. When we talk about flow in a fuge we're not talking about velocity, we're literally talking about the amount of turnover of water. If your pump is pushing 700gph, baffles aren't going to slow that 700gph down, it's still 700, it just doesn't have as much force behind it.
I'm not saying 700gph is too much for a fuge, btw, just illistrating the point. Most of us like a slower moving fuge because it allows more contact time for the water to be with the macro algaes, allowing the algaes time to actually consume the nutrients better. I don't know that there's a magic flow rate for contact time in a fuge, but for me my fuge runs at about 100-150gph, and I'm able to control that due to my setup. You're a little more restricted, just based on available space, so I don't think you can achieve that - but still, like I said initially, anything is better than nothing.
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