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Oh, I'm just testing the pH on the DIY base rock, I was told that the concrete "curing" (not cycling) will mess with the pH in my cycling tank so I should make sure it's stable. I'm just wondering what pH I should be aiming for with the concrete before I add it in with the rest of the cycling...

Quick update, everyone is still going strong in the QT so no worries there. I have the 40 lbs of argonite sand 5 lbs of live rock and 15 lbs of base rock curing in a 45 gallon tub along with some small chunks of salmon to add ammonia. I've been testing daily and here's what I've got: 12/19...

Ok, that's more or less what I was thinking. I can use the 40 gallon, and I'll have a bunch of empty 20 gallons as well since my student tanks won't be in use during that time of year. I'll have them help me clean and set up tanks, move everybody, then just mad dash to get the tank LS and LR...

Ok update, all the fish in the QT are going strong and water chemistry is looking good, continuing with the twice daily PWC. I've set up a 45gal tub in my spare bathroom with 40lbs argonite sand about 10lbs of BR and 5lbs of LR (I'm making more BR as well, but it won't be ready for at least a...

Also, the water is cloudy, every other time I've filled a tank its cleared up in a few hours, but I filled the tank up over 24 hours ago and the water still looks cloudy.

Ok, QT set up at home and all five remaining fish seem to be doing ok. I double checked and the dechlorinator does remove both chlorine and chloramines so that shouldn't be an issue. The ammonia levels in the tank this morning were down to around 0.25 as well. The only concern I have now is...

Ok, I'm setting up the small tank this morning and I wanted to test the water just to check. The water coming right out of my tap after mixing with salt and adding a declorinator is reading 0.5 ppm. What on earth? I'm retesting just to check.

Ok, I can set up a small tank tomorrow, that'll let me bring them home over the break too so I can monitor them more closely. I didn't want to do a PWC of more than 20% in an emergency like that, I was always told that it can add stress and end up killing the fish, is that not the case? I'll...

The rocks were a part of all of the equipment that was from the old aquatic science class so they were used in tanks previously. I'm working on establishing connections in my neighborhood, but that takes time. For now I'm more concerned with doing what I can with what I have and trying to fix...

Ok, now I've got problems, I'll sum up as best I can. The class tank still seemed to be doing well on monday, but it looked like the green chromis that I thought was being picked on by the striped guys was getting worse. That afternoon while digging through drawers in the back storage room...

Just a quick update: Came in this morning and the Percula Clownfish seems to have settled in nicely. Also, the Green Chromis that my husband and I spent an hour tearing the tank apart looking for on Saturday, he miraculously reapered during first period, go figure... So, other than the domino...

Ok, that sounds good, I'm filing for the collecting permits I need, school teachers can get the permits here without major issue. I'll try this out myself over the christmas break and see how it goes.

That's actually the site that gave me the idea. We won't have any lights for growing corals or anemones, but would rocks made in that way still be ok for hosting the bacteria for the biological filter, at least in a reasonable amount of time for my students to be able to use?

Ok, here's a question I have after looking around. I've seen some posts about making your own base rocks/live rocks by mixing argonite sand and cement. If I were to make some of these rocks along with rock collected from a local beach and/or some bacteria starting aids would these rocks be...

Ok, if I came across as overly sensitive I apologize, but it seemed like you were saying that I was being intentionally cruel or setting a bad example for my students. I am doing the best that I can with very limited funds. At this point my entire school budget is going to trying to set up 28...

1. I've been monitoring the Nitrate Nitrite and Ammonia levels every day. Even with all of the fish in for a week they are still reading zero. I don't like the strips either but they are what I have and they did pick up a slight drop in my pH that went back to normal after I did my water...

Ok, adding this from my profile because apparently it doesn't actually fit there: I'm running a 40 gallon tank, the tank and gravel are both old equipment that was used for the old Aquatic Science class at my school. I have a hanging filter at one end of the tank and an airpump with an...

Hello all, I'm a high school teacher setting up a new Aquatic Science class. I am a bit embarrassed to admit it, but while I've worked for major aquariums and have lots of time diving and viewing fish in the field, I've never actually kept a private aquarium or set up a small salt water tank...