chem problems

I have a 40 gallon tank and my phosphate is currently 0.5 and I’m having trouble lowering it. I use rodi water so I know that’s not the problem. I heard poly filter lowers phosphate so I bought it but it doesn’t seem to do anything. I’m trying to get it lower than 0.1 so I can finally add corals...

Hello! I have my 20 gallons IM AIO 4 months ago. Everything went good until like 2 weeks ago. I start having issues with the alkalinity all the other parameters are stable but the alkakinity is going up every day. Today: -O2: 8 mg/L -Sal: 1.025 SG -Alk: 11.8!!!!! ??? (It was at 11.2 and is...

I’m brand new to the hobby and have a 10 gallon tank setup. Currently have 2 clowns and a skunk shrimp along with 2 nassarius snails, 2 Cerith, 2 red scarlet hermits. I have 1 green start polyp,1 mushroom, and 2 zoas that I added in about 2 weeks ago. I had some test strips on hand that I wanted...

Hi all. Recently I got my hands on a Trident and it has confirmed that something is sucking the life out of my alkalinity and calcium. Before receiving the trident through my normal tests I determined that my alkalinity and calcium was being used up by something of which I have no idea. I have...

So about a year ago all my coral got nuked due to some heavy metal contamination and I switched to FOWLR but i wanted to give it another try and I'm trying to get my parameters in coral range but im having PO4 issues. For the past month or so they have been consistently 2.0ppm which is obviously...

I have a ~400 gallon tank that was previously running that’s being started up again, but I’m running into a strange problem. It cycles out ammonia usually in 24-48 hours, but nitrite is taking 2-3 days. Parameters: Ammonia: .5 on API and 0 on salifert Nitrite: .5 Nitrate: 25 PH: 8 SG: 1.026...

Yesterday my nitrite was at zero while ammonia began to spike and now everything spiked even nitrates is this ok? what about phosphate is that ok?

I have a 55 gallon tank with a 20 or so gallon sump. I have a protein skimmer rated for 120g tank, dragons breath macro algae, 2 4" filter socks I change twice weekly in addition to 20gallon water changes weekly. I have a moderate amount of rock and I also use xport bio and xport no3. I have...

I have a 75 gal set up since Dec. Mainly FOWLR with 4 coral frags, & macro algae. Have a sump with no skimmer (someday). I have had problems with my overflow box & my inlet pump was too powerful and I downgraded my pump. But it has been a great struggle...... I'm not sure how I got to where...