Reusing the aquarium wastewater?

[GenghisTom]

I water plants with RODI wastewater but run saltwater down the drain. The salt makes it unusable for most plants.

The saltwater makes it a great weed/grass killer if you're just hitting the leaves and not trying to soak the ground.

 

[JAMSOURY]

Thought this thread was going to be taking water change water, filtering it out, and reusing it for the next water change. Would be cool to never buy salt again lol

 

[smitten with ocean life]

you got that right!

 

[reefruss]

I use it to raise brine shrimp to adulthood.

 

[SteveMM62Reef]

I was soaking my dry firewood in it for a week or two. Then re-drying it. Makes a really colorful fire. BTW, all Masonry Fire Place and Chimneys. Not sure it would be good for a Catalyst Wood Stove or insert.

 

[smitten with ocean life]

are you joking? never heard of this!

 

[chippy]

ive been rolling around in my head what could be done to make the water that gets dumped from a water change usable, for say, plants. just seems like it should be good fertilizer for something if there was a way to reduce the salinity without too much work. anyone out there use their waste water for something? or have any thoughts on how it could be turned into fertilizer?

I pour it on my patio pavers to kill the weeds that grow through.

 

[aussiejohnny]

ive been rolling around in my head what could be done to make the water that gets dumped from a water change usable, for say, plants. just seems like it should be good fertilizer for something if there was a way to reduce the salinity without too much work. anyone out there use their waste water for something? or have any thoughts on how it could be turned into fertilizer?

from my fresh tanks i water outside plant in pots ..one tree always in flower ...potted inside plants tends to bring fungus gnats cause of organics in water ..saltwater straight down the drain

 

[smitten with ocean life]

i know the water from fresh tanks is wonderful for plants!

 

[Australian_Reef]

I poor it on the driveway. The salt kills any weeds in the cracks/edges and keeps the surface clean of any lichen/grime layer that otherwise needs power washing. Best on a hot day where it can dry quickly and leave the salt behind.

 

[Pig]

yeah i know. i have a brown strip through the lawn from running it out the window . just seems like there would be a way to make it useful for something with all that fish poop in it!

Exactly my intent with waste water from my future reef. Redirect it for killing weeded areas.

 

[jonnywink]

I always save several gallons to clean my filter media the following week. (I alternate the water change week with the canister filter clean week). But then it’s dumped down the drain with all the extra sludge.

 

[blkcoral]

I use it to kill the weeds that poke out of the cracks in my driveway and around the outdoor part of my mini split

Jimmy on Saltwater Aquarium poured the old saltwater on his pavers around his pool to kill the weeds. If memory serves.

 

[blkcoral]

Someone mentioned using the old saltwater to clean your tank filters/sponges since contains good bacteria. Is this true? I would assume possibly accurate if you have good levels of nitrates/phosphates.

 

[hsp]

I use the wastewater to hatch brine shrimp eggs and do 2 water changes with it before feeding them (just the brine shrimp; without pouring the water into my tank). Of course, this uses only a small part of the wastewater.

 

[commod0re]

I use the wastewater to hatch brine shrimp eggs and do 2 water changes with it before feeding them (just the brine shrimp; without pouring the water into my tank). Of course, this uses only a small part of the wastewater.

That’s so smart

 

[winxp_man]

I just don't remember any of the details or how much was recycled. I was too busy helping chase "escaped" penguins down hallways when were were talking about it.... Little guys and girls are fast and smart, well sort of smart. They follow the leader. "Nope... everyone this way.... Nope that guy is blocking us... hurry everyone waddle this way". It as kind of like run down in a baseball game spread over a few halls.


Pittsburgh uses (or at least did at the time) Instant Ocean. Massive concrete mixing and holding tank and an overhead gantry to dump salt. They do get some in boxes, but most of it was in palletized FIBCs (SupersSack I think people also call them).

What comes to mind is Madagascar!

 

[thebookshark]

I add a little bit (like 1 cup) to my betta water when I do a water change in that tank. It’s better than buying aquarium salt and mineral additives etc. Fish plants and snails are doing great.

 

[billrob71]

I use it sometimes for watt the trees and I’ve used it to refill my hot tub

 

[atoll]

now this sounds interesting. do you raise them to sell?

If you are replying to me then no I just feed them to my fish daily. All 3 plus of them.