Reeftanks6 90g reef build thread ( pic intense)

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Your specific gravity (SG) shouldn't drop over time if it's juts evaporation occuring and you're topping off with freshwater daily. However, if there's salt creep, or your skimmer is pulling out a significant amount of wet skimmate, then I guess over time your SG could drop.

If I need to raise my salinity, I top off with saltwater that day. I'll check it again the next day, to see if my SG increased. If it did, then I'll maintain freshwater top-offs. If the SG is still too low, then I'll top off again with saltwater.
 
I top off with RO/DI water via an automated system. My tank uses 35g of top off water a week. The salinity never changes, and yours probably won't either.

The skimmer you have won't pull out copious amounts of skimmate. The sump & refugium design doesn't lean to salt creep issues either. Checking the salinity every few days or at the very least weekly is important as you get used to how your new setup works.

Let's see pictures of this tubing you're talking about. We want to share in the fun.
 
Ok i wonder why my salinty went down then. Maybe because of the leak. Question on the skimmer do you guys wet skim or dry skim
 
If the tank leaked, and you topped off with freshwater, then yes, it would go down. If it just leaked, it should not have dropped significantly. Do you notice any salt creep anywhere on your tank / system?
And where are these pics we keep getting promised?



Oh, and do your homework.
 
shekki if your gonna have comments like that they dont bother on answering. I got the pics and i will be getting the rock this weekend and possible setting up the fuge.

PICT0005-1.jpg


The blue hose on the right was the one that was leaking. I put silicone on the inside and let that dry half the day yesterday and over night. It has been working for now.
 
i wouldnt trust that ribbed hose to connect to an insert fitting. thats not the proper application,and thats probably why it was leaking. you shouldnt have to rely on silicone to keep your plumbing from leaking! the clear tubing on the left is correct, the blue ribbed hose on the right is wrong. it should be replaced with the same type of polypropelyne tubing used on the other fitting. that hose is better suited to adapt to ano hub band. it will keep giving you problems! why did you use 2 different types of tube there anyways? and what does the blue ribbed hose attach to? is it coming from the overflow, and then adapting to the pvc inside floor? how exactly does that work?

oh, and whats the great white shark comment supposed to mean? :confused: im not sure if i should be offended, or flattered? and why is everybody else something from the reef, and im something from the open ocean? thats a little dissapointing! im havinga bad week!

keep an eye on your plumbing rt6! if you didnt clean the pipes very well with some denatured alcohol, or other mild chemical solvent, it probably wont hold. honestly you should swap out that hose with a piece of vinyl tubing!
 
typo. " it should be replaced with some type of polypropylene tubing *like was used on the other fitting* "

*a no hub band*
 
Yes chrismunn i dont trust to much either, but if the hose leaks again then i will replace it with a regular hose like the one on the left. I agree on the great white comment also.
 
i just spent 30 minutes writing a tutorial on evaporation and salinity swings, and it was so long that it wouldnt post, and when i tried to page back, it all got erased!
 
That is why when I post somthing thats long I do right click then copy befor i send it just for that very reason, sorry to hear I have been there befor.
 
Last edited:
<a href=showthread.php?s=&postid=11726691#post11726691 target=_blank>Originally posted</a> by chrismunn
i just spent 30 minutes writing a tutorial on evaporation and salinity swings, and it was so long that it wouldnt post, and when i tried to page back, it all got erased!
Click to expand...

Never page back. When it won't post, click Refresh. Then a box will appear with a message about "POSTDATA" and you need to select yes/okay. It happens often, and I will click refresh to try it again. If it fails again, refresh again. I don't hammer away on the refresh button, but do so each time it doesn't work until it sticks.
 
<a href=showthread.php?s=&postid=11726200#post11726200 target=_blank>Originally posted</a> by Reeftanks6
shekki if your gonna have comments like that they dont bother on answering. I got the pics and i will be getting the rock this weekend and possible setting up the fuge.

Take it easy, kid.

Abbreviating words and ignoring grammar may work when you're text messaging your friends but it does not work in the real world. You will always be judged on your ability to communicate whether you're digging ditches or closing deals.

I'm pulling for you and hope that your tank is a success.
Click to expand...
 
lets try this again. what i was trying to explain yesterday rt6, is evaporation, and replenishment...

when water evaporates from your tank, the salt thats in the water does NOT evaporate with it. the salt stays in the tank. since the water exits your tank, and leaves the salt behind, your salinity will rise. to correct the rise in salinity created by water evaporation, just add fresh, unsalted water back into the tank. put simply, whatever water you lose from evaporation, replace with fresh, 100% h20, no salt!
you mentioned losing salinity over time. it is possible. when water is taken out of the tank in any way other than evaporation, the salt will exit the system with the water. for example, when you do a water change, your taking salt water out of your tank. if you were to add fresh water in its place, your salinity would decrease. basically any salt water that is taken out of the tank should be replaced with salt water. and any water that evaporates from your tank should be replaced with fresh water.
if you have a system the does alot of splashing, say from your overflow, it is possible for salt water to slowly exit the system. if this is happening, and you replace it with fresh water because you think its from evaporation, your salinity will decrease slowly over time.
the best possible thing you can do if your worried about your salinity lowering, is always keep a close eye on your salinity by testing with a refractometer, or in your case a hydrometer. its going to take effort on your part to make sure your adding the right amount of water, be it salt, or fresh, so that your salinity stays in balance.
last nights explanation was 10 times better, and covered in better detail the neccesity to understand the basics of water chemistry, but im not patient enough today.
 
Sorry for taking your comment the wrong way Shekki. Chrismunn thanks for the replay as for the salinity dropping i think it was because of the leak because i lost some salt there. A little of topic i saw a show on the great barrier reef and there is this starfish that is killing all the corals.
 
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