How much phosguard to use in my 5 gal pico

[000trick000]

Phosphates are at .25 and large water changes, scrubbing algae and vacuuming are not reducing my hair algae. So I'm wondering how much phosguard can I put into my filter system on my 5 gal pico. On the directions it says 1/3 cup for 50 gal, so would a spoonful work? I never used this before. Thanks!


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[Sniperhank]

Yes. Go slow and watch parameters. This stuff can get used up quick and need replaced. Longest I've ever had it go is about 28 days.

[000trick000]

Cool, sounds like a plan. Thanks


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[Reefer James]

I believe for phosguard you're only supposed to leave it in place until it's fixed your problem. It's not like GFO. Ideally you run phosguard for 4 days and test your levels. If you still need to lower levels, run another 4 days.

It's also better to use less of at once until it's completely exhausted. Using more is not more effective with this particular product.

Since phosphate is a necessary nutrient for all living organisms I'd run it no longer than 8 day and 12 being the most unless my test kit said above .03 phosphate (and even then I wouldn't run it longer, I'd figure out how my phosphate levels are not decreasing and figure out what I'm doing to add phosphate or what is disturbing my sand bed)