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Seachem Prime usage guide
Posted: Sat Jun 21, 2025 2:58 pm
by Himal
I've been using Seachem Prime for a while now, but I'm not sure if I'm dosing it correctly. How do you guys measure it for a 20-gallon tank? I usually just eyeball it, but I wanna make sure I'm not over or underdoing it.
Re: Seachem Prime usage guide
Posted: Sat Jun 21, 2025 3:57 pm
by gaslyte
For a 20-gallon tank, the recommended dose is 1 mL per 10 gallons, so you'd need 2 mL. It's best to use a syringe for accuracy. Eyeballing can lead to inconsistent results, especially if you're dealing with sensitive fish like discus.
Re: Seachem Prime usage guide
Posted: Sat Jun 21, 2025 4:36 pm
by Freshlex
Yep, gaslyte's got it right. I use a little dropper bottle for mine. Also, if you're dealing with ammonia spikes, you can double the dose safely. Prime's pretty forgiving, but why risk it, right?
Re: Seachem Prime usage guide
Posted: Sat Jun 21, 2025 5:32 pm
by nightfly
I've heard some folks say you can use Prime to detoxify nitrites too. Anyone tried that? I've got a nitrite issue in my 55-gallon and wondering if it's worth a shot.
Re: Seachem Prime usage guide
Posted: Sat Jun 21, 2025 5:55 pm
by metiteh
nightfly wrote: ↑Sat Jun 21, 2025 5:32 pm
I've heard some folks say you can use Prime to detoxify nitrites too. Anyone tried that? I've got a nitrite issue in my 55-gallon and wondering if it's worth a shot.
Yeah, it works for nitrites, but it's not a long-term fix. You still gotta figure out why your cycle's messed up. Prime just buys you time.
Re: Seachem Prime usage guide
Posted: Sat Jun 21, 2025 6:02 pm
by brookstream
I'm kinda new to this, but I've been using Prime for my 10-gallon betta tank. It's been a lifesaver. My tap water's got chloramines, and Prime handles it like a champ.
Re: Seachem Prime usage guide
Posted: Sat Jun 21, 2025 6:53 pm
by buddyx
For those with bigger tanks, how do you handle dosing? I've got a 125-gallon and measuring out 12.5 mL every water change is a pain. Any tips?
Re: Seachem Prime usage guide
Posted: Sat Jun 21, 2025 7:14 pm
by olanko
I use a measuring cup with mL markings for my 75-gallon. It's not perfect, but it's close enough. Prime's pretty concentrated, so a little variance won't hurt.
Re: Seachem Prime usage guide
Posted: Sat Jun 21, 2025 7:26 pm
by goldminer
Anyone else notice Prime smells like rotten eggs? I swear, every time I open the bottle, my whole room stinks. Still worth it though.
Re: Seachem Prime usage guide
Posted: Sat Jun 21, 2025 7:36 pm
by dusk
goldminer wrote: ↑Sat Jun 21, 2025 7:26 pm
Anyone else notice Prime smells like rotten eggs? I swear, every time I open the bottle, my whole room stinks. Still worth it though.
Haha, yep, that's the sulfur. It's gnarly, but it's a small price to pay for clean water. I just hold my breath when I pour it.