Blue Green Reef Chromis
- Thread starter big pat
- Start date
f14peter
Member
Originally Posted by ecooper
I have three of the green chromis in my 75. They are very active (that's why I got them). However, they're the only fish that are in the open area of the tank. The other fish (coral beauty, maroon clown, mandarin) are lower level and like the live rock. I'll bet they're scared of something.
Good luck!
That might be playing a part. When researching fish selection, we decided to get fish that occupy particular parts of the environment . . . upper part of the water column, bottom dweller, free swimmer, etc. We have 5 chromis and we got them because they school and they usually work the upper part of the tank, rarely getting below the halfway point and then only to chase down a chunk of food or at night when they cluster besides something like rock or the overflow.
The tang probably isn't too much of an issue because it's so mobile, but your pajamas and damsels also work a lot of the similar territory (Besides the damsel's reputation as real hellions). Being a tad timid, the chromis are probably a little spooked to venture too far out into somewhat crowded ground.
I have three of the green chromis in my 75. They are very active (that's why I got them). However, they're the only fish that are in the open area of the tank. The other fish (coral beauty, maroon clown, mandarin) are lower level and like the live rock. I'll bet they're scared of something.
Good luck!
That might be playing a part. When researching fish selection, we decided to get fish that occupy particular parts of the environment . . . upper part of the water column, bottom dweller, free swimmer, etc. We have 5 chromis and we got them because they school and they usually work the upper part of the tank, rarely getting below the halfway point and then only to chase down a chunk of food or at night when they cluster besides something like rock or the overflow.
The tang probably isn't too much of an issue because it's so mobile, but your pajamas and damsels also work a lot of the similar territory (Besides the damsel's reputation as real hellions). Being a tad timid, the chromis are probably a little spooked to venture too far out into somewhat crowded ground.
1journeyman
Active Member
Originally Posted by Big Pat
My pH last night was 7.8, over night it dipped to 7.4.
Then, yes, it needs to be raised.
First off, I agree with the other posters above. I'm highly suspicious of the Damsels being bullies. Still, the pH is an issue.
What is the gph flow in your tank? Also, what is your Calcium, and Alk readings? Finally, when was the last time you did a water change, and how muh water?
My pH last night was 7.8, over night it dipped to 7.4.
Then, yes, it needs to be raised.
First off, I agree with the other posters above. I'm highly suspicious of the Damsels being bullies. Still, the pH is an issue.
What is the gph flow in your tank? Also, what is your Calcium, and Alk readings? Finally, when was the last time you did a water change, and how muh water?
1journeyman
Active Member
Sorry. Gallons per Hour is gph.
We need to see what your circulation is. I suspect the glass tops, in addition to low circulation, have hit your pH.
Calcium and Alk also can affect pH se we need to get those tested.
We need to see what your circulation is. I suspect the glass tops, in addition to low circulation, have hit your pH.
Calcium and Alk also can affect pH se we need to get those tested.
fbm
Active Member
GPH is gallons per hour, it is the rating pumps are sold in. You must also take into account the head that the pump is pumping too. Head is the discharge hieght compared to the suction hieght. For example my pump is rated at 1050 gph but at a 4 foot head it only puts out 700 or so. Power heads inside the tank don't have a head so if they say they put out 300 then that is what you get.
Now you need to have enought gph's to equal 25 or more turnover rate of you tank. A turnover is the size of your tank per hour. So a 100 gallon tank should have enough combined gph's to equal at least 2500 gph. See what we mean?
Now you need to have enought gph's to equal 25 or more turnover rate of you tank. A turnover is the size of your tank per hour. So a 100 gallon tank should have enough combined gph's to equal at least 2500 gph. See what we mean?
1journeyman
Active Member
If not, tell us what it is and I'm sure someone will know.
kayak385
Member
Originally Posted by Big Pat
My filter gives out 400 gphs. Is that enough since I have a 75 gallon tank?
Is it a fish only tank or a reef tank?
From what I understand a fish only should have 10-15 times your gallons = gph. and reef is 30-35 times your gallons.
I personally have 950gph in my 75 gallon tank.
My filter gives out 400 gphs. Is that enough since I have a 75 gallon tank?
Is it a fish only tank or a reef tank?
From what I understand a fish only should have 10-15 times your gallons = gph. and reef is 30-35 times your gallons.
I personally have 950gph in my 75 gallon tank.
1journeyman
Active Member
Originally Posted by Big Pat
My filter gives out 400 gphs. Is that enough since I have a 75 gallon tank?
Nope. That's less than 6x tank volume. That, in addition to the glass lids, could be causing the pH issues as you are not getting adequate gas exchange.
My filter gives out 400 gphs. Is that enough since I have a 75 gallon tank?
Nope. That's less than 6x tank volume. That, in addition to the glass lids, could be causing the pH issues as you are not getting adequate gas exchange.
big pat
Member
Originally Posted by 1journeyman
Nope. That's less than 6x tank volume. That, in addition to the glass lids, could be causing the pH issues as you are not getting adequate gas exchange.
Ok so 75x6=450
My filter gives out 400 gphs, so I still need 50 more gphs.
What could I use to get the extra 50 gphs?
Nope. That's less than 6x tank volume. That, in addition to the glass lids, could be causing the pH issues as you are not getting adequate gas exchange.
Ok so 75x6=450
My filter gives out 400 gphs, so I still need 50 more gphs.
What could I use to get the extra 50 gphs?
1journeyman
Active Member
Originally Posted by Travis89
IMO, 2 maxi jet 1200's would be better so you can put one on each side and they have more flow then the 900's.
Agreed. You also want to place them down a bit in your tank with at least one pointed somewhat upwards to get good surface agitation.
IMO, 2 maxi jet 1200's would be better so you can put one on each side and they have more flow then the 900's.
Agreed. You also want to place them down a bit in your tank with at least one pointed somewhat upwards to get good surface agitation.