water change

  1. G

    Water change schedule for 20g tank

    HI everyone, So I've been doing a weekly water change of 20% which is ~4gallons weekly. However, many people in the hobby have told me that that is too much and probably do 20% every 2 weeks. I like my weekly maintenance but should I make that 10% instead? I have like 15+ LPS corals, 3 fish...
  2. Lex_510

    Using RO water

    Hello, So I’m setting up a new 75 gallon tank with sump and I need a lot of water Fill it in. There’s a Water Mart a Water filter Store that sales filter RO water that is abt 2-4 TDS. Is that ok to use for a mix reef set up? Is it bad or good??
  3. codee

    Using a inexpensive utility sump pump to move water from Brute?

    Does anyone use an inexpensive utility sump pump to move saltwater from their Brute (or mixing station) up to their tank? I need a pump with at least 15 of head height, as I'm pushing water up the stairs from the basement. Most of these utility pumps do not indicate if they are safe pushing...
  4. joshharmony

    Hi nitrates 90 Gallon tank fowlr advice

    Hi all, new here. I’d love some guidance/advice from aquarists who might be able to help me figure out how to bring nitrates down in my tank. My tank is little over a year old. 90 gallon with a 30 gallon refugium, protein skimmer, with some Chateo growing beneath... The tank previously housed a...
  5. Edison Coltro

    Water changes in a 150 G aquarium

    Hey guys, I have an 150 G aquarium that's been running for roughtly 2 months. In it I have 2 clowns 1 sainfin tang and 1 lawnmowner blenny. I've been wondering how often I should do my water changes since the aquarium is so lightly stocked. I'm currently doing 7-10% every other week, what...
  6. HawaiiTanks808

    How to go about doing a 75% water change for a 75 gal tank

    I have a 75 gallon tank. In 2 weeks I need to do a 75% water change after treating flukes with prazipro in my display tank. How do I do this, I don't have the space or bins to mix that much water ahead of time. So what do I need to do, to do this large of a water change safely for the fish. Do...
  7. MarshallB

    Anyone DIY a no water change substrate vac?

    Since I have automatic water changes set up, the water it takes to vaccum out the sand seems like such a waste. Plus I have to make sure I have enough mixed salt water ready to replace what im going to suck up. If I don't then I have to wait 24 hours. Simply put, it's a hassle. Seems like a no...
  8. Tdoan

    Multiplex APEX DOS

    Has anyone used 1 DOS to do auto water change on 2 different tanks? My thought is to use solenoid valves to control the water flow. Or to run parallel water Lines to each tank off the main lines from the DOS. If you have done this please let me know how you done it. Any thoughts?
  9. MnFish1

    Water changes or equipment /supplements for nutrient export - a Poll....

    Lately - after a couple items failed and having problems in the past with various algae outbreaks, chemical methods to control algae, etc etc. I've come to the conclusion that 'simpler is better' - So - for my current tank I have a skimmer, some carbon in the sump - and dose 2 part using weekly...
  10. jackalexander

    100% Water Change

    So in my previous thread, I had an ammonia issue that was out of hand. As suggested, I did a 100% WC and now i’m wondering when I should start adding fish back. If anyone has suggestions, let me know!
  11. Tristan

    Chalice coral mucus damaging SPS

    When I do large water changes, I have a large chalice coral (echinopora) that gets exposed to the air so it ends up producing a lot of mucus. When I fill the tank back up. This mucus flows throughout the tank. Last time, it ended up getting on an Acro and monti frag and killed some of the...
  12. ReeferWarrant

    Reducing Nitrates and Phosphates via Water Change Help

    Setting up to reduce my nitrates which are at 40 ppm and I want to get them down to around 10 ppm. I currently have mostly soft and LPS corals, but tried introducing some Monti's, which are extending but I dont believe they are doing well. Additionally, my Phosphate is high so my assumption is...
  13. ReeferMadne55

    Nitrate reduction

    I have a order of fish and some zoas coming in tomorrow night. Just tested all my parameters on the tank and I have a few questions. Salinity: 1.0245 Temp: 78 F Ammonia: 0 ppm Nitrite: 0 ppm Nitrate: 20 ppm I kinda wanna get my nitrates lower before the fish arrive. I did a 30% water change...
  14. Currently a noob

    EMERGENCY Is my water safe?

    A follow up question to my fish having ich. I currently have lake Michigan water coming to my house. My friend told me it could be the reason my fish got ich. So I was wondering if it were possible to have a fish store test my water to confirm if it's safe or not? The reason I ask is because I...
  15. ReeferMadne55

    High Nitrates

    Hi guys, so I am brand new to this community and I figured I’d ask a few questions. I have been keeping aquariums on and off most of my life. I just recently started getting back into the hobby and I set up a new 40 gallon FOWLR tank about a month ago. I used Fritz Turbostart 900 to cycle the...
  16. Jax15

    Water Changes or AWCs... is one better than the other?

    A few months back I set up auto water changes on my Waterbox 130. It has worked amazingly well.. in theory. Back when I was doing bi-weekly 10-15% water changes, I would notice a happy shift in my tank after doing it. Corals and fish seemed to love the refresh, and things did well. With the AWC...
  17. C

    Switching to RODI

    I started a 15 gallon reef tank about 3 weeks ago just using tap water with a water conditioner and everything is doing fine other then alge and I am aware i need RODI water. If i start doing water changes with RODI will it filter out my tap water ?
  18. C

    Tap water->RODI water

    I started a 15 gallon reef tank about 3 weeks ago and used tap water with a water conditoner, everything has been doing good other then having alge issues and i am aware I should be using RODI water. If i start doing water changes with RODI from now on will that tap water be filtered out ?
  19. Mr marine

    Water change

    Hi guys how often would you recommend I do a water change and how much water I have been doing 50L every 10 days it’s a 450 L tank thanks
  20. DanSavesTheDay

    Higher alk waterchange?

    I am looking to change out about 10 gallons in my 90 gallon reef *88 gallons=tank+fuge* housing some expensive sps frags. If my current DKH is 8.2 and the DKH of Reef Crystals is 13 would that be too much of a change? I did the math and doing a waterchange would add about .5 DKH for 10 gallons...
  21. psumms

    Too much water change a bad thing?

    Is there such a thing as too much regular water change? Apart from the cost consideration, is changing 20% weekly, split over 7-days, better or worse that than say 10% once a week?
  22. Beats001

    Aqua Forest Probiotic reef salt batch differences.

    Hi all, I realise all batches of AF salt are all slightly different and I wandering how others manage this in conjunction with dosing equal amounts of Components 1,2,3? Take the following as an example ... I am in the process of balancing my ions, dosing equal of the 3 comps, with a little...
  23. skimjim

    The true cost of a 20g Water Change

    I wanted to document what I think are close $$$ numbers on the true cost of a 20g water change. I chose 20g bc on avg I think most ppl are around a 20g water change when done weekly, bimonthly, or monthly. TAP WATER TO RODI: Avg cost of tap water in the U.S. is around $2.50 per 1000 gal...
  24. Bhor217

    Water change tips

    Hi All, I am hoping some of you can share some tips on doing water changes. I have a 150G DT, and am trying to figure out the best way to know when I have taken out 15 Gallons, or 30 gallons, so I know when I have taken out 10-20% respectively. I was thinking of just filling up a 5 gallon...
  25. LilElroyJetson

    Do You Feed Your Corals Before or After Your Water Changes?

    Do you prefer to feed your corals before your water changes? Some seem to prefer to reduce what stays in the water column after feeding by doing a water change after, others seem to look at it as leaving fresh food available for their livestock after a water change, and some feed their tank so...