MY FRIEND NEEDS HELP WITH HIS TANK

PeterB113

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Hey guys I'm at my friend's house right now and his water is really cloudy. We just setup a 40g breeder that's been setup about 3 weeks. Noticing alot of brown stringy film at the top of his tank. All the corals and fish look fine. Parameters are all good. We're currently doing a 30% water change. Any ideas what this is or advice to help clear it up?

Salinity 1.025
CA 440
MG 1420
Ph 7.9
Temp 78°
Dkh 9.5
Ammonia 0
Nitrite 0
Nitrate 2

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PeterB113

PeterB113

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PeterB113

PeterB113

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Maybe have him get skimmer or at least a surface sskimmer. The tidal wave filters offer that. I never owned one honestly.
He has this. Brand new in the box should he put this in for now? Can you send a link to the skimmer your talking about.

EHEIM Skim 350 Aquarium Filter
 
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MaxTremors

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It’s a bacterial bloom. Add a protein skimmer or airstone to ensure fish get enough oxygen. It should resolve within a week or two on its own, but protein skimming and/or a UV sterilizer will help. Water changes won’t do much to help (still do them if other parameters suggest you should). Just a thing that commonly happens in new tanks.
 
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