How Do You Do Your Saltwater Waterchanges?

Zach72202

Member
So I am planning on setting up a 65G (36x18x25) saltwater aquarium for my green spot puffer. I plan to have a HOB protein skimmer and HOB Fluval 70, do not plan to have a sump. I think it will be just him in there. I think I will keep the salinity at 1.022 when he gets 4"+, he is about 3" now. I will probably try to give him a tank mate, maybe like a damsel or two (just something small and cheap), but if things go south I can always set up like a 20 gallon tank for them.

One problem I have thought about is the best way to do a water change. This is the main reason I do not want to do a large reef tank is because I don't want to be a slave to mixing salt and whatnot, plus salt costs money.

My idea is to have a 20 gallon tank (inside of the stand) that I pre-mix saltwater for so it is ready to go for water changes. I plan to have a small submersed pump I can just run to pump the water into. As for draining I will mark the tank to 20 gallons with something to signify where 20 gallons drained is so it is consistent every time.

This is just my current idea since I have never done saltwater, but I am open to any other suggestions or criticism with this plan! Thank your for reading and feedback is appreciated!
 

HarrisonAquatics

Member
My GSP is pretty friendly, other than a bit of fin nipping. I'd look into damsels and more aggressive clowns.

I always just mix my saltwater in a 5 gallon bucket. When doing large WCs, it's a pain, but for your average change, it's easy. A good salt will mix clear in just a few minutes, so I can mix 5 gallons of SW in about 3 minutes. It's really not bad.
 

LadyS

Member
Most salt mixes very quickly, and Red Sea advises not to mix water more than 4 hours, so I wouldn’t stress about making plans to store lots of water.

If I planned on 20g water changes, I’d buy a smaller brute trash can (like the 25-35 range), put it on a roller, and use it for mixing/transferring.

As for cost, keep in mind that Chewy has super cheap Instant Ocean/Reef Crystals, and PetCo will price match, so a 50gal bag of salt comes in under $14. I see no need to drop lots of money on TropicMarin, or any of the blends targeted at reef keeping.
 
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Zach72202

Member
LadyS said:
Most salt mixes very quickly, and Red Sea advises not to mix water more than 4 hours, so I wouldn’t stress about making plans to store lots of water.

If I planned on 20g water changes, I’d buy a smaller brute trash can (like the 25-35 range), put it on a roller, and use it for mixing/transferring.

As for cost, keep in mind that Chewy has super cheap Instant Ocean/Reef Crystals, and PetCo will price match, so a 50gal bag of salt comes in under $14. I see no need to drop lots of money on TropicMarin, or any of the blends targeted at reef keeping.
The tank is going to be in the living room (on carpet), so can't do a trash bin, and I suppose I could just have it mixing the day I plan to do the w/c. Have like a little powerhead in there blowing it around just to mix up.
 

fish 321

Member
I usually keep a bin of rodi water on stand by since it takes a while to make, then just mix up some salt in a bucket with a power head when needed.
 

Jesterrace

Member
Ball pump siphon to drain and pond pump for refill. Here is mine in action:

 

kanzekatores

Member
I usually do a gravel vac, with a 5gal bucket RO nearby with some instant ocean salt in it (About 1/2 cup per gallon but I pretty much eyeball it). I mix it with my hand, let it dissolve, and if it's at right salinity, I fill the tank back up with it.
 

Kleiner

Member
Zach72202 said:
So I am planning on setting up a 65G (36x18x25) saltwater aquarium for my green spot puffer. I plan to have a HOB protein skimmer and HOB Fluval 70, do not plan to have a sump. I think it will be just him in there. I think I will keep the salinity at 1.022 when he gets 4"+, he is about 3" now. I will probably try to give him a tank mate, maybe like a damsel or two (just something small and cheap), but if things go south I can always set up like a 20 gallon tank for them.

One problem I have thought about is the best way to do a water change. This is the main reason I do not want to do a large reef tank is because I don't want to be a slave to mixing salt and whatnot, plus salt costs money.

My idea is to have a 20 gallon tank (inside of the stand) that I pre-mix saltwater for so it is ready to go for water changes. I plan to have a small submersed pump I can just run to pump the water into. As for draining I will mark the tank to 20 gallons with something to signify where 20 gallons drained is so it is consistent every time.

This is just my current idea since I have never done saltwater, but I am open to any other suggestions or criticism with this plan! Thank your for reading and feedback is appreciated!

After a 40+ year hiatus from Salts, I'm back! Things sure have changed.

I have a 50 gal Jajale high now, a sump in the stand. Fantastic system. Tank base & stand platform are predrilled for the plumbing. A 1 1/2" corner drain tube, w/ overflow at the height of the tank, has a built-in 1/2" return pipe inside The under-tank plumbing has the intake to the sump & a 1/4" flex drain line which is combined. So I drain 9 gal. in a 10 gal. plastic tub. A seperate 10 gal, tub that ran for 2-3 days has replacement water, with a small pump and a heater. I use those flat coasters to move that tub in place. I shut off my sump intake line while I pump the clean water into the sump. It works out ok. Less that 25 minutes total
 

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