Donate to the running of ReefBase

We don't display ads, and we don't charge suppliers. This allows free, unbiased speech and opinion. Any donation of any amount really helps with the running costs.

Donate £1.00 Donate £2.50 Donate £5.00 Donate £10.00 Donate £20.00 Donate another value


0 Members and 1 Guest are viewing this topic. 303 views

  • Posts: 2
  • Liked: 0
  • Thanks Given: 0
  • Received: 0
  • Location: Lanarkshire, Sco

Hi guys, new to reef keeping. Have kept freshwater for many years.. looking for some advise. started cycle on my tank DT- 120ltrs, sump 40ltrs. on 27th March using 20 kg macro rock carabean live sand. RODI water. And Aquacare bio boost. Added 3 frozen prawns & been ghost feeding every other day. So far my Ammonia readings are 0.25,, for last 7 tests. nitrite 0.2 and nitrate 10.the sameWas, just concerned I’m not on the right path as I’ve not had any ammonia/nitrite spikes.Any advise would be appreciated.


  • Tim
  • Global Moderator
  • Posts: 2,657
  • Liked: 701
  • Thanks Given: 359
  • Received: 587
  • Location: Camberley
  • Tank Thread:'-tanks-6/tims-first-and-last-upgrade/msg42396/#msg42396

Reply #1

Hi and welcome to the forum

I would say you have overloaded the system with the prawns and ghost feeding. You need to keep ammonia under 2ppm or the cycle will stall.
If you can find the prawns remove them and stop feeding until your ammonia hits zero. If it still doesn’t budge you might need to do a water change to help it.



  • Posts: 2
  • Liked: 0
  • Thanks Given: 0
  • Received: 0
  • Location: Lanarkshire, Sco

Reply #2

Will give that a try. Thanks Tim