When my phosphate was really high I do 4:1 ratio of RODI water and sample water so hanna ulr can read it, then multiply the result by 5.How would I dilute the test.sample
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When my phosphate was really high I do 4:1 ratio of RODI water and sample water so hanna ulr can read it, then multiply the result by 5.How would I dilute the test.sample
I'm just going to think out loud here and do the back-of-the-envelope math. Monosodium phosphate has a density of 2.36 g/cm^3. Eight tablespoons is appx. 120 cm^3. Now, I know that there is some air between the particles, so let's estimate 10% air, so that's 120 * 2.36 * 0.9 = 254 -- let's call it 250 grams that you dumped in. Monosodium phosphate is around 79% PO4 (let's call it 80%), so that's 250 * 0.8 = 200 grams of PO4 in your 225 gallons. 225 gallons is around 850 liters, so that's 200 / 850 = 0.235 grams per liter, which = 235 mg/L = 235 PPM. Ouch! I hope I've made some mistake here, and if I have, somebody please point it out, but I don't think I have.dumped a ton of monsodium phospate ( 8 tbsp ) into my 225 gallon reef
If this is correct, you could do a 99% water change and your phosphate could still be over 2.35 PPM. And that is assuming that none of the phosphates were absorbed by the sand and rocks and released into the new water.I'm just going to think out loud here and do the back-of-the-envelope math. Monosodium phosphate has a density of 2.36 g/cm^3. Eight tablespoons is appx. 120 cm^3. Now, I know that there is some air between the particles, so let's estimate 10% air, so that's 120 * 2.36 * 0.9 = 254 -- let's call it 250 grams that you dumped in. Monosodium phosphate is around 79% PO4 (let's call it 80%), so that's 250 * 0.8 = 200 grams of PO4 in your 225 gallons. 225 gallons is around 850 liters, so that's 200 / 850 = 0.235 grams per liter, which = 235 mg/L = 235 PPM. Ouch! I hope I've made some mistake here, and if I have, somebody please point it out, but I don't think I have.
I'm just going to think out loud here and do the back-of-the-envelope math. Monosodium phosphate has a density of 2.36 g/cm^3. Eight tablespoons is appx. 120 cm^3. Now, I know that there is some air between the particles, so let's estimate 10% air, so that's 120 * 2.36 * 0.9 = 254 -- let's call it 250 grams that you dumped in. Monosodium phosphate is around 79% PO4 (let's call it 80%), so that's 250 * 0.8 = 200 grams of PO4 in your 225 gallons. 225 gallons is around 850 liters, so that's 200 / 850 = 0.235 grams per liter, which = 235 mg/L = 235 PPM. Ouch! I hope I've made some mistake here, and if I have, somebody please point it out, but I don't think I have.
so Randy, if I go thru all 32 ounces of seaklear phosphate remover dosing 30mls a day and still have .9ppm on the phosphates- after all that, if I remove all the water at once doing a 100% water change and start back up with new real reef rock- or take all the old rock out now and change like 50% of the water and then add in the new real reef rock, can this work or will the acrylic tank be ruined forever by the phosphate?I think the 10% is an underestimate. The published bulk density I find is 0.88 g/cm3.
Still, using a calculator I get more than 100 ppm in his tank.
so Randy, if I go thru all 32 ounces of seaklear phosphate remover dosing 30mls a day and still have .9ppm on the phosphates- after all that, if I remove all the water at once doing a 100% water change and start back up with new real reef rock- or take all the old rock out now and change like 50% of the water and then add in the new real reef rock, can this work or will the acrylic tank be ruined forever by the phosphate?
I don’t think any of it is ruined. You just have to keep pulling the phosphate out
ok, ill just keep dripping 30mls a day of seaklear into the tank until i see some lowering in the phospahtes... either way the rock needs to be replaced im afraid.The acrylic tank is not ruined. It may need to have precipitate cleaned from it, if it is clouded with solids.
I'm not sure how much phosphate to expect to still be in the water as a lot likely precipitated as magnesium and calcium phosphate, independent of the Seakler additions.
its a BB tank, about 100lbs of LR currentlyAny sand is surely ruined, IMO.
Rock might be able to be cleaned.
Equipment is easily cleaned up.