Have you vaccines the sand?
lol it's that time of years
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Have you vaccines the sand?
Yes gfo is Perfect. That removes the silicates. If you have some you can add some activated carbon. USMC 4 Life put it in a bag ON the return pump I believe.What about GFO? I have some of that. Or is phosoguard better?

for superfast removal of silicates and phosphates, Phosguard is better but it lasts about two days IMHO. They say three to four but if you are going to use PG, change it frequently. GFO will also reduce PO4 pretty quickly, but since it last two to three months, depending on PO4 levels, it can absolutely reduce your PO4 to zero. Probably don't want zero PO4. I use both, keep GFO in a reactor with a set amount that I know the result of based on my feeding. When I feed heavy or read a higher than normal (for me) PO4 level, I throw some PhosGuard in and let it run for two days, check PO4 again and if it's good I pull the PG. If not, I take the old out and replace it with new. What is your PO4 level? An imbalance of NO3 and PO4 will definitely make bad stuff happen and worse stuff start to grow...
Looks like diatoms to me, will happen in an established tank no matter how low or high nutrients are if you do frequent water changes. My sandbed is brown for a few days after EVERY water change due to silicates.
People say standard RODI systems will remove them but they are spreading false information and need to educate themselves better.
There is a special resin you can buy that removes silicates; it's basically a special DI resin but it's fairly pricey. If you do alot of water changes you better get a second job or deal with brown sand!![]()
Looks like diatoms to me, will happen in an established tank no matter how low or high nutrients are if you do frequent water changes. My sandbed is brown for a few days after EVERY water change due to silicates.
People say standard RODI systems will remove them but they are spreading false information and need to educate themselves better.
There is a special resin you can buy that removes silicates; it's basically a special DI resin but it's fairly pricey. If you do alot of water changes you better get a second job or deal with brown sand!![]()
for superfast removal of silicates and phosphates, Phosguard is better but it lasts about two days IMHO. They say three to four but if you are going to use PG, change it frequently. GFO will also reduce PO4 pretty quickly, but since it last two to three months, depending on PO4 levels, it can absolutely reduce your PO4 to zero. Probably don't want zero PO4. I use both, keep GFO in a reactor with a set amount that I know the result of based on my feeding. When I feed heavy or read a higher than normal (for me) PO4 level, I throw some PhosGuard in and let it run for two days, check PO4 again and if it's good I pull the PG. If not, I take the old out and replace it with new. What is your PO4 level? An imbalance of NO3 and PO4 will definitely make bad stuff happen and worse stuff start to grow...
Phosguard is exhausted in a few days? So if a 300g treatment is $17 and it only lasts a few days you're literally throwing money in the trash. Who would be so silly to do such a dumb thing?
Gently Stir that section of the sandbed for 7 consecutive days.

