Recent content by MarkW19

Hi guys, In a few days I'll be getting a Fluval Edge to use a a coral-only tank (with live rock), as a number of people have done. It's only a very small tank (23L), but I'll be upgrading the lights (again as others have successfully done) to two MR16 LEDs (6k-6.5k) @ 240 lumens each, which...

Thanks guys, I'll vary between my current pellet and some (rinsed) frozen I think :)

Thanks Mike; I guess one of those marine quartet packs (mysis, seaweed, brineshrimp etc.) would be a good idea for variety? I just wasn't sure about the water from the frozen food polluting the tank etc...

Hi guys, I have a 10g nano, which houses a yellow clown goby, green clown goby and a small Ocellaris clown. I feed once a day. I was wondering what the best food is to use, both for the nutrition of the fish, and the least polluting of the water etc.? I'm currently using pellet, but used to...

Hi guys, I have a 10g nano, which houses a yellow clown goby, green clown goby and a small Ocellaris clown. I feed once a day. I was wondering what the best food is to use, both for the nutrition of the fish, and the least polluting of the water etc.? I'm currently using pellet, but used to...

Understood that nitrites aren't immediately fatal to fish, and that they have to come from ammonia. But, in the case of my PWC water, this has shown 0 ammonia consistently, and obviously the bacteria required to convert ammonia into nitrite aren't in my bucket! I'm with Kurt/mrg02d: I think...

Hi Kurt, I'm disappointed that the nitrites wouldn't be the problem, I thought I'd cracked it. Those levels of nitrites shouldn't be in my PWC water though, should they? I'm not using test strips, I use liquid ones (Seachem usually, and I've also run a reference sample to check the accuracy...

Guys, just had a major development with this. I was due to do a PWC today; and as each of the last 3 waterchanges I've done have resulted in fish deaths, I decided to do a thorough test on the PWC water before I put it in (as opposed to the normal temp/pH/SG checks I usually do); yes I know I...

Hi Thincat, It's the PWCs that have caused all the problems - the last three of them have caused fish deaths - with no explanation so far! I'm trying to find out a reason for it, but no luck as yet. When I said "fingers crossed", I meant I was hoping that the PWC goes okay without incident...

Definitely no rotten egg smell. I'm due a waterchange in the next couple of days (new salt and re-calibrated TDS meter), so it looks like all I can do is keep my fingers crossed...

I don't have a sump; my substrate is ceramic media, not sand, but yes it is possible that the substrate is slightly stirred up during a waterchange (I add water slowly though). Is it possible to test for Hydrogen Sulfide in the tank? Nothing new in the tank...

Hi Thincat, Thanks for the reply. My water parameters are stable and always have been (I use RO water @ <002ppm TDS), 1.025 SG, 0 ammonia/nitrate, and nitrates are approx 30ppm (no corals), pH 8.2. Temp is consistent. I feed high quality pellet/flake food usually, with the odd frozen as a...

Thanks, I'll keep an eye on the bristleworms. I've just got some new salt to see if it was that, and I've got some TDS calibration solution on the way to test/recalibrate my TDS meter, so I'll try a water change when this arrives and will see what happens to see if I can rule these two things...

Guys, on another note, yesterday I noticed a lot of worms at the bottom of my tank (look like bristleworms, approx 15 of them of different sizes); never noticed these before in this tank or any before. I guess they're not the reason for the waterchange issues, but should I be getting rid of...

Well, I've ordered a fresh batch of salt; and I'll make up some fresh RO for my next PWC. I'll also recalibrate my TDS meter to make sure it's showing accurate readings. Apart from this, are then any other tests I can do either in the new SW before I put it in the tank, or in the tank after a...